This video teaches that ecosystems function through interconnected food chains where organisms are linked by what they eat, and that many species form beneficial partnerships (symbiosis) to survive. The class learns that phytoplankton (scum) are eaten by zooplankton, which are eaten by small fish like anchovies, which are eaten by larger fish like tuna, demonstrating how energy flows through ecosystems. The video also explains that coral reefs are living structures built by tiny animals called polyps that partner with algae to create the reef, and that pollution can disrupt these partnerships, causing reefs to become sick.
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Undersea Adventures | Full Episodes | The Magic School Bus | Scholastic After SchoolAjouté :
Ride on the magic school bus.
Good morning and welcome to the weekend edition of In Your Face, the only TV show that asks the question, what's really going on here? I'm your host, Jerry Pavi. This just in. The monster of Walker Lake has just surfaced again.
>> Mom, hurry. Look. The monster's back.
>> Uhhuh. This I've got to see.
>> Here is an exclusive photo of the monster as it reappeared this morning at the crack of dawn.
>> Wow. Unreal.
>> I couldn't agree with you more, Wanda.
Jerry Pav would do anything for a story, even if it means making it up.
But mom, what if the monster is real?
[music] What if I, Wanda Lee, am the first person to make contact with the monster of Blocker Lake?
>> Oh no. My whole class beat me to it.
>> How come the monster never came up before now?
>> Maybe it came up because it was hungry.
>> Maybe so, Feeb. But if I were a monster, it would take a lot more than a banana to get me back to the surface.
>> Okay. But if it is hungry, we have to feed it. If it won't come up for the banana, I'll send the banana down to it.
>> Oh no, a banana floats.
>> That's okay. I like banana splits better.
>> Well, if I can't get the monster to come up here, I'll send my camera down there.
Hey, my monster cam floats, too. Who would have guessed?
>> If we want to see that monster, we'd better find out a way to turn these floaters into sinkers.
>> Maybe we should use my mother's calzone instead of a banana. They go down like rocks.
>> Did you see it yet? Did you touch it?
>> What took you so long? We thought you'd be the first one here.
>> Yeah. Well, I'm going to be the first one down there. I'm going to the bottom of the lake to find the monster.
>> I don't know, Wanda. What would Miss Frizle say?
>> It's the weekend, Phoebe. No school, no Miss Frizle.
>> Look, look, look. It's coming towards us.
>> The monster.
>> Oh, good morning class.
>> Miss, >> nothing like a dip in the deep. Are you looking for the monster, too, Miss Frizzle?
>> Well, if you don't look, you'll never see. And what you don't see can be very hard to find.
>> Huh?
>> You look like you have that sinking feeling, Wanda. Want to float something past me.
>> Jerry Pav showed a picture of the monster on TV. It has to be true.
>> Pictures can be faked, you know. To prove it's really real, you need evidence. And there isn't any. And what do you do when there isn't any evidence?
>> Go home.
>> No, you look for it. I'm going after the monster myself.
>> This is a warning. Monster alert. Stay out of the water. I repeat, stay out of the water.
>> Hey, it's Jerry Pavari.
>> For updates on the monster of Walker Lake, watch the next edition of In Your Face. You heard me, folks. [screaming] Stay out of the water. Return to the safety of your homes.
>> Wait a second. She doesn't own this lake. We can look for the monster if we want to.
>> Can't we, Miss Frizzle?
>> Not only that, we can take chances, make mistakes, get wet.
>> Is it just me or does this sound like a field trip?
>> I PROPOSE AN UNDERWATER EXPEDITION TO LEARN THE WHOLE truth and nothing but the truth about this monster. A splashing idea, Wanda.
He hate list.
All right, cool. An underwater field trip.
Ready to die, M. Frizzle.
>> Ready, but unable, Wanda. But the sinker linker's rusted. Somebody forgot to swab the deck and dry the sinker linker the last time we went under.
Without it, we can't sink. At least not automatically.
>> But we've got to get down there. This is our chance to make history.
>> Be history. I mean, >> as my uncle Wilbur used to say.
>> Oh, you can lead a bus to water, but you can't make it sink. Yes, we can, Miss Frizzle. There's got to be a way.
>> Let's see. The banana floats and the rock sinks. They're the same size, but the banana is light and the rock is heavy. If something is heavy enough, it sinks. What will a banana rock do?
[music] Good one, Phoebe. The extra weight of the rock is [music] making the banana sink.
>> Yo, monster. Lunchtime.
>> That's it.
>> The monster.
>> Where? What's it look like?
>> No, not the monster. Extra weight.
That's how we're going to get to the bottom of this.
>> How many more of these do we have to fill?
>> Enough to sink the bus.
>> Hey, Wanda. We've almost got enough extra weight.
>> This one should do it.
>> Look out. Here we come.
Hurry. Come on, Liz.
All aboard for the last bus going down.
Dive. Dive.
>> Sinking.
Sinking. Sunk.
>> Something about this field trip seems fishy to me.
>> Carlos, >> you were right, Phoebe. Nothing like adding a little extra weight to make something sink.
>> You think underwater monsters like peanut butter and jelly? I don't know, but if you feed it, I'll film it.
>> Are we going to keep sinking until we hit bottom?
>> Sinking only ends when you hit bottom, Arnold. Hard left.
H looks like I've got some competition.
Well, not for long.
What is that?
>> We're losing our weights.
>> Oh no, we're rising to the surface.
>> Right you are, Phoebe. Can you feel the water pushing us up, up, up, up? Oh, isn't floating to the surface exciting?
>> No, sinking is exciting. I don't want to float.
>> No one's going to ruin my story.
Especially a bunch of nosy kids.
>> Oh no.
[screaming] >> Oh boy, we're floating again.
>> Oh, isn't it delightful? Water can be such pushy stuff.
Push water out of the way and it pushes back.
It's the water's push that's making us float.
>> But we've got to find that monster. Ms. Frizzle. We're sunk if we can't sink.
>> As my uncle Vern always said, there's more than one WAY TO SINK A FLOATER. COMING. LIZ, >> what are we going to do? What are we going to do?
>> Maybe if I put enough heavy rocks in here and seal it up tight, my monster cam will sink. Say cheese down there.
>> It works.
>> Now, how am I going to feed the monster?
>> Send him your sandwich. USS.
>> USS. United Sinking Service.
Just pitch it out there.
>> Hey, my bread's not sinking. It's floating.
>> Check it out, Phoebe. There's your bread.
>> Now I'll never get to feed the monster.
Oh, the poor thing will starve.
Oh well.
Okay, Phoebe, don't look now, but your bread ball just sank.
>> I don't get it. If they both weigh the same, why does a bread slice float and a bread ball sink? Did someone say sink?
>> Over here, Wanda. Instant replay.
>> There. See it? Your bread ball is sinking.
>> So, what's the difference between a bread slice [music] and a bread ball?
>> Okay, I give up. What's the difference between a bread slice and a bread ball?
It's not a joke, Ralphie. The only difference I can see is that the ball is a lot smaller than the slice.
>> Ooh, a big point, Kesha. They weigh the same, but the big one floats and the small one sinks.
>> Does that mean you can take something that floats and crumple it down smaller and it'll sink?
>> Now you're thinking, Wanda, make it small enough and even a cork will sink.
>> I get it. If we crumple the bus small enough, it'll sink. Right >> now you're thinking sinking. Class, prepare to crumple.
>> All right, let's crumple this floater into a sinker.
>> It'll be a tight squeeze, but not to worry. We're all friends. Liz, activate the crumple zones.
But I still don't get it. We weigh the same. So, how does being smaller make us sink?
>> Maybe it's because the more we crumple in, the less water we shove out of the way.
>> Now I get it. The less water we shove out of the way, the less the water pushes back on us.
>> Yes. And down we go.
>> Ah, sinking we will go. A sinking we will go down to the bottom. Oh, a sinking we will go.
Don't these children ever give up.
Cut it out, Phoebe. It's crumpled enough in here without you squirming around like an eel.
>> I'm just getting ready to feed the monster when we find it.
>> When I find it, you mean.
>> We bottomed out, Miss Frizzle. We're as low as we can go.
Wanda, >> where are you going?
>> Wait a sec. We're going up.
>> What happened? Why didn't we stay sunk?
>> We were okay until Wanda left.
>> Of course. When Wanda left, it made us lighter.
>> Wanda, come back.
>> [screaming] >> Wanda, >> look. The monster's got Wanda.
>> We have to get back down there.
>> How? The water's shoving us up again.
>> I've got it. Let's get smaller. Oh, I'm afraid we can't do that, Ralphie. The crumple controls jammed.
>> We need something heavy to weigh us down.
>> But what?
>> I know, >> Carlos.
What's he doing?
>> He's letting water into the pontoons.
>> The pontoons are filling up with water.
>> Now, one side's heavier than the other.
>> I see what he's doing. Water's heavy, right? More water, more weight.
>> And down we go.
>> Good one, Carlos.
>> Hang in there, Wanda. We're coming down.
If that girl finds my monster, why I'm sunk.
Let go of me. Get away.
Oh. All right. You asked for it.
>> What? Its nose just floated away.
My mother was right. Oh, there is no monster. It's I'll just pretend >> and I get to reveal it all on In Your Face.
>> You mean you did this?
>> Well, I had no choice, did I? I mean, when your ratings are sinking like mine are, you need a buffalo sucko expose to make them rise up again.
>> But this is dishonest.
>> No, no, no, no, no, no, no. I I prefer to use the phrase creative journalism.
>> Call it what you want. You won't get away with it.
>> Nobody's going to believe you. Well, you're just a little kid.
>> We'll see about that.
If nothing else, she's a feisty little kid.
>> Where's Wanda?
>> And where's the monster? What if the monster ate her?
>> But I wanted to feed it.
>> Phoebe, >> just kidding. Wanda, >> here she comes.
>> Are you okay?
>> Did you find the evidence you were looking for? Wanda, >> what happened to the monster?
>> The monster is a fake.
>> What?
>> The real monster is Jerry Pav. She set the whole thing up just to get people to watch her show. We have to get back to the surface and stop her. The truth must be told. The truth is the pontoons are completely filled with water, >> which means we're sunk for good. Hold it. We know how to sink a floater, right? So, there must be a way to float a sinker.
>> Easy. Remember how we got lighter when Wanda left?
>> Oh no. Do I have to go out there again?
>> Push on, Arnold. I think you're waiting into something.
>> Well, I was thinking that if the water in the pontoons weighs us down, what if we push the water out with something lighter?
>> And what is a lot lighter than water?
>> Air.
Poses in place.
>> Do you think this is going to work, Miss Frizzle?
>> Only one way to find out. Poppers, start your pumps.
>> It's working. The air is pushing the water out. We're getting lighter.
>> We've got liftoff.
Ah, now that we're lighter, the force of the water pushing up is greater than our weight pushing down.
>> And that means we can stop Jerry Pav from floating a lie to the unsuspecting public just to boost her ratings.
[laughter] >> Sink again, little girl.
Hey, what happened?
>> We stopped going up.
>> Oh no, we're going down again.
>> The corks are gone and the air is escaping.
>> As my old uncle Windchill used to say, >> air today, gone tomorrow.
>> Look, it's Jerry Pavi.
>> What do we do? What do we do? What do we do?
The inflatable genius of Jerry Pavi is about to rise to the surface.
It's showtime.
This is Jerry Pavi reporting live from Walker Lake.
>> [screaming] >> It's no use. What's sunk is sunk.
>> Look, it's Jerry Pavar's big monster.
It's rising to the surface. There must be something we can do.
>> We have to get lighter.
>> Wait a second. What about getting bigger? Remember my bread slice?
Crumbled in small, it sank. But when it was big, it floated. So, if we unrumple the bus, we'll get bigger, push more water out of the way, and float to the surface.
>> Good idea, Da.
>> Miss Fizzle, maybe you can uncrumple from the inside.
>> You got it, Wanda. Come on, Liz. Use those uncrumpling muscles.
It's working. The bigger the bus gets, the more the water is pushing on it.
>> No kidding. We're turning this sinker into a super floater.
>> Bring the monster cam, Tim. I've got an idea.
>> We'll be right back. blowing up.
>> Underneath a deceptively calm surface, the residents of Walkerville are gripped with fear. But the recent sightings of the so-called monster have caused this reporter to be more than a little skeptical. HEY. HEY. WHAT'S GOING ON?
HEY.
OH, LOOK.
Oh my chopper.
My story.
>> Our story. You mean ready, Tim?
>> Ready?
>> So, that's all that remains of the monster of Walker Lake. I know we ruined your story, but the truth had to be told.
>> Well, I [sighs and gasps] I have to hand it to you. You're certainly a brave bunch of kids, and your camera work is excellent, Tim.
>> Thanks, Jerry.
>> Hi, Mom.
>> We may have been brave, but you were wrong to perpetrate this hoax. You owe your public an apology.
>> Yes. Yes. Right you are, Wanda.
to these kids here and to all my viewers out there. I'm so sorry.
[cheering] >> So, let's look once again at the shot which got you a spot on this show and me and offer to star in a new underwater action adventure series. How did you do it?
>> We knew the monster was big enough and light enough to float. So, all we had to do was let it loose and you know the rest.
Your very own monster ended up in your face. [laughter] >> Yes. Well, it did, didn't it? [gasps] Well, you must be very proud of your class, Miss Frizzle. Well, Jerry, as you yourself once said, the truth always floats to the surface.
Is this the magic school bus?
>> Is this the magic school bus?
>> Magic school bus.
>> Magic the magic school bus. Magic school bus.
>> Magic school bus. Magic school bus.
Magic magic school bus.
>> I wonder school bus. I WANT THE MAGIC SCHOOL BUS.
WELL, nothing like a good hoax to get you your own series.
I love show business.
>> Hello.
>> Is this the magic school bus?
>> No, this is Jerry Pavi.
>> But you were just on the magic school bus, weren't you?
>> And now I'm on my way to fame and fortune. Goodbye.
>> Wait a minute.
I'd just like to say that it's dangerous to dive underwater [music] unless there are lifeguards around. That's right. And the cuter they are, the better. Thank you and goodbye.
And now I'm out of here.
Should I let it ring?
No. No. Could be my agent.
>> Hello. I just saw your show where the bus floated and sank by pushing water in and out of those big tank things. Well, that's ridiculous. Why?
I don't know about any bus, but that's how submarines switch from floating to sinking and back again. By pushing water in and out of big tanks [music] inside the hall.
>> They do.
>> They do. Goodbye.
Now, do I have everything? Oh, I don't believe this. Hello. Whatever it is you want, make it quick.
>> I bet you I can make a solid copper penny float.
>> Oh, no way. That would be so heavy it would sink no matter what.
>> Uh-uh. All you've got to do is get it to push more water out of the way to hold its weight. So, smash it thin and flat with a hammer and then bend up the edges to make a copper boat.
Then it'll float.
Gee, thanks for the tip.
And thank you for the tip, Liz. Bye-bye.
It's very nice, you guys. But it's nothing like a coral reef.
According to Miss Frizzle, a reef is a shallow place in the ocean. Miss Frile also said that a coral reef is built by tiny animals >> with tiny tools.
>> Carlos, >> I meant tiny underwater animals. Carlos, >> well, according to my research, coral reefs are alive >> and gazillions of fish live there. So, can we move the rest of the fish from the other tank to our coral reef now?
>> Wait, we need one more thing to go right there. It's the only space left and it's perfect for the shell Wanda and I are going to paint.
I've asked me hearties. Look what I just made for the new aquarium. What about our shell? Your shell, Da. I decided to make this treasure chest for our coral reef. And I see the perfect spot for it.
But Wanda, we were supposed to make something together. Miss Frizzle said everything we put into the reef had to be done by partners.
>> So, I thought of it and I made it. What better partnership is there?
>> What's that?
>> Oh, good morning class. My my look at all these wonderful things in the aquarium. Oh, and a treasure chest.
>> Do you like it? I made it myself.
>> Even though we were supposed to [music] make something together, but you know, I work better alone.
>> H, your treasure chest reminds me of something. Don't go away.
Ah, here it is.
My great great great great great great great great great great great great great great great great grandfather Redbeard's treasure map.
>> Redbeard?
>> He was the pirate in the family a long long time ago. Of course >> you had a real pirate in your family.
>> Why not? This map's been in the family for centuries.
>> Wow. A real map of a real place. Then this must be a real coral reef. And the treasure must be real, too. Is it, Miss Frizle?
>> Well, Wanda, there's only one way to find out. To the bus.
As my great grandma told me, Redbeard was no ordinary pirate.
>> Why am I not surprised? Instead of making his victims walk [music] the plank, he took them along on adventures in his pirate ship. [laughter] >> You mean he took people on field trips, too?
>> Oh, yes. They went everywhere and anywhere.
>> No way. He must have robbed and plundered like a normal pirate because he left a treasure.
>> We don't know that for sure, Wanda. All we've got is a map.
>> And according to that map, we're here.
Coral reef hoe drop anchor [music] coral reef where >> good question Ralphie and I'm going to answer it >> partners everyone two [music] by two please >> partners >> yes you know like Kesha and Ralphie Tim and Carlos BB and Arnold and you and me. I don't need a partner.
I'm a pirate, not a Weasly wimp.
>> Ah, but as old Redbeard probably used to say, "Go into the sea without a partner, Matie, and you can get into deep trouble."
>> Ready, partner? Yeah, but I still don't know why.
>> You'll need the map, Wanda. And don't worry, it's [music] waterproof.
>> Thanks, Miss Frizzle. To the treasure.
>> [music] >> Woohoo!
Is this it? Is this where the treasure is? It doesn't look anything like our aquarium.
>> Yeah, where are all the fish?
>> According to my research, there's not much food and no shelter for fish in deep ocean water.
>> But there are lots of different kinds of fish living in a coral reef. So, where's the reef? All I see is a lot of deep water.
>> According to this treasure map, wo everything. Look at that.
>> Look at the size of the fish.
Now we're talking coral reef.
>> And now we're talking fish.
>> But are we talking treasure? Wanda, wait for me. Hurry up. Da partners.
They slow you down. Wanda, wait for me.
What's that?
It looks like an old chain and it's got a pirates mark on it. Lookie lookie look. That chain is the dotted line of the map. See, it leads to the treasure.
I think it goes somewhere over there.
Not so fast, Wanda. We've got to stick together. We're partners, remember? What good did a partner ever do anyone anyway?
>> Good question, Wanda. Liz.
>> Oh no. Wait. I take back the question.
>> Oh no. Me and my dead fell.
How am I going to find the treasure now?
>> I guess we'll just have to wait and see.
Wanda, I've never been a sea anemmy before.
>> Sea anemone? Is that what we are?
>> According to my research, a sea anemone is a marine animal which looks like a plant.
>> Yeah. Looks like a plant and acts like a plant.
>> Yeah. We can't exactly move from one place to another.
>> But you get a good view of the fish from here.
>> Whoops. Not enough food for two.
>> Okay, so you're seeing enemies, but what are the rest of us, Ms. Frizzle?
>> Your hermit crabs, Arnold.
>> Hermit crabs? Sure, why not? Seems safe enough. Nice hard shell.
Hey, look, a rock.
Yikes. That rock was a fish and it ate that other fish. What kind of a place is this? A crowded one ar the kind of place where you either eat or get eaten.
>> A place where it's every critter for herself. But how am I going to get to the treasure when I can barely move?
Well, since I'm a crab and crabs can walk, I'll just follow the chain. Aren't you glad you have a partner now, Wanda?
Wa!
>> What's going on?
>> Don't look now, but I think it's jail time.
>> I knew I should have stayed home today.
Octopus.
Oh no. [screaming] >> Over here, Arnold.
Nobody seems to want to swim near us sea anemmones.
>> That's because we sting.
>> Lucky you, Feeb. That means they leave you alone and won't eat you.
>> So, if we stay close enough to you, they won't eat us either.
>> Hey, Da. This is bad enough as it is without you pushing me around.
>> Hey guys, look at what that real hermit crab's doing.
Why would a crab want a sea anemone on its head?
>> For protection. That's why the sea anemone stung the octopus.
Come on, let's see if it'll work for us.
[music] You know what, buddy? It's kind of nice being able to move.
And I get to eat what you eat.
>> And you give me protection. Now that's what I call a [music] partnership.
>> I just thought of something, Da. If I get up on your shell, I'll protect you from the octopus and you can take me to the treasure. You got it, partner. To the treasure. Come on, partner. Faster.
[screaming] Hey, it worked. Your stinger scared him away.
>> Nice one, Wanda. Way to go.
>> You scared away the octopus.
>> Yeah. Okay, so that's the good news. How are we going to follow the chain through that teeny tiny space?
>> Now, there's a question worth diving into, Wanda.
Well, at least I can move now. What are we, Miss Brile?
>> We're pistol shrimp, Wanda. We live in burrows in the coral rubble. Can you dig it?
>> You bet. Now I can dig a hole through here so we can get to the treasure.
>> What about us, Miss Frile? We're fish and fish can't dig. You're right, Tim.
You're a goi fish. A goi fish?
>> Didn't I see a fish that looked like us get eaten? Time to find a place to hide.
>> But where?
>> These claws are great for digging.
Better than a shovel any day. But I sure can't see very well. Even if I do find the treasure, I probably won't see it.
Sh.
>> Shark, hide.
Hide. Where? There's no room.
>> Do you see what I see? Hiding places.
Move over, Wanda. Da. What are you doing? Hide. There's a >> Dolly. You're wrecking my tunnel. There won't be a tunnel if you get eaten by that shark.
>> Shark. Shark. Shark.
Whoa. Thanks for warning me, partner. I couldn't see that shark coming.
>> Man, it's a good thing for us gobies that you shrimp dig places to hide and don't mind sharing. And it's a good thing for us shrimp that you gobies warn us when there's danger we can't see. Is it just me or [music] are shrimp and gobies partners for a reason?
>> Survival, Ralphie. Survival. Each one helps the other to live.
>> Hey, you guys look. You won't believe it.
What is it? What is it? I can't see.
>> Wow.
>> Awesome. Is it the treasure, Da?
>> No, but I see where the chain goes. I'll check it out.
>> Don't go without me. I'm your partner.
Remember? Ooh, I need a partner who can get me safely to the treasure, Miss Frizzle.
>> Oh, Liz.
>> [music] >> One last time.
>> Yes, this is more like it. What's more like it? I know I'm a shark, but what are you?
>> We're remoras, Da. Fish with suction cups that attach themselves [music] to sharks.
>> So they can get a free ride. Right, Miss Frizzle. A free ride and a free meal.
Woohoo!
>> But what do we sharks get out of this deal?
>> Ooh, something's itching me.
>> Maybe we get rid of these little critters stuck all over your skin.
>> M tasty.
>> Thanks, Ralphie. What a partner. Those guys were really starting to bug me.
I guess these little crunchy guys are tasty [music] for me and bad for you.
But what I really think is that this tusome is ready to find the treasure.
What do you say, partner?
>> I say not if we find it first. Go, Tim.
>> Oh, yeah. Hang on, Wanda.
Hey, what's wrong with the reef over here? It looks almost dead. Never mind that. The treasure is in there. Let's get it. I uh I don't like the look of [music] this place, Wanda.
Yay. It's the treasure.
Let me help. I'm bigger and stronger.
Now we're talking [music] partnership.
Oh no.
Da, are you all right?
We found it. We found the treasure.
>> But when we pulled it out, look what happened.
>> A big piece of the reef broke off. And now the treasure's underneath all the stuff. If you ask me, this whole part of the reef looks pretty sick. It's lost its color, too. Could something be wrong with it? I think that's a question we can build on, Dorothy Anne. Don't you, Liz?
>> What do you know? We're humans again.
All the better to use your mega magnifiers, my dears.
Now I know why they say the reef is alive. Look, it's made of little animals. Boingo, Carlos. Little animals called polyps. The coral reef is a limestone skeleton built by these polyps. And they're building new coral.
Hold on. I think these polyps over here have something the ones in the sick part don't have.
>> You're right, Tim. Each polip has something inside it.
>> And that stuff is algae.
>> Algae?
>> You mean like the scum I got on my shoe when I stepped in the pond?
>> Wait a minute. Wait a minute. This whole day has been about partners working together. Right. Right. First, we were hermit crabs and sea anemmones. The sea anemmones protected the crabs.
>> And the crabs move the sea an enemies around.
>> They're partners.
And then we were pistol shrimp and goi fish. The shrimp dug hiding places that helped protect the gobies >> while the gobby fish kept an eye out for trouble for both of them.
>> Hide days.
>> And don't forget the sharks and raoras.
>> Hide days.
>> Where critters meet to eat. It's sometimes better to cooperate than to compete.
>> So do coral polyps get something from the algae. Are they partners too?
Righteously reason, Wanda, since algae is a plant, it makes its own food from sunlight. It gives off wastes which help the polyps make the reef.
>> Cool.
>> So, if the algae helps the polyp build reefs, what did the algae get out of it?
>> If you ask me, the algae get a nice safe place to live away from these hungry fish.
>> Oh, fantastically figured, Phoebe. A partnership which is good for both partners is a partnership that lasts.
>> So how come these polyps on the sick part of the reef don't have any algae partners?
>> Maybe they're just being silly like I was. Hey polyps, take it from me.
Sometimes it's better to work with a partner. Really trust me on this one.
>> I don't think they can hear you Wanda.
According to my research, if the water where coral lives gets polluted, the polyps get rid of their algae partners.
>> But why would the water be polluted over here and not the water over there?
>> The only thing about this place that's different is this is where I found >> the treasure.
This chest is made of some kind of metal.
H looks like copper to me. Redbeard knew many things, but he didn't know about pollution.
>> You mean Redbeard's treasure chest could be polluting the reef, Miss Frizzle?
>> It could indeed, Kesha.
>> Well, then let's remove the source of the pollution.
Hit it, Liz.
>> [music] >> Now, let's clean up this place. Wanda, what are you doing? Trying to get some clean water in here to give these polyps a chance. Good idea.
>> Way to go, boys.
>> It's working. These polyps just took in some algae, and they're starting to build coral again.
The partnership is working, but won't it take forever for these polyps to build up the reef again?
>> Never say forever, Da. Normally, it would take hundreds of years, but I think today we'll speed up the process a little. Take it away, Liz.
>> [music] >> Yay!
We did it.
>> Careful.
Easy does it.
So, who's going to open it?
What is it? It's a model of his ship.
Cool.
There he is. Great great great great great great great great great great grandfather Redbeard. Oh, little did he know his treasure chest would one day hurt the reef? If he were here, he'd thank you all for finding it and pulling it out. Right, Redbeard?
>> What do you think this is? It looks like some kind of handle.
>> Why don't you pull it?
Well, what do you know? It's an MSG.
>> A what?
>> A magic Spanish gallion. I told you Redbeard was no ordinary pirate.
>> Is this the magic school bus?
>> Is this the magic school bus?
>> Magic school bus.
>> Magic the magic bus. Magic scuba.
>> Magic scuba bus.
>> Magic scuba bus. Magic.
>> Magic scuba bus.
>> I want the magic school bus.
>> I WANT THE MAGIC SCHOOL BUS.
>> Magic school bus. The producer speaking.
>> Hi, I just watched your show on Coral Reefs and thought it was terrific, but I have a couple of questions on this partnership thing.
>> Fire away, buddy. Is it true that most animals have partners like the ones you showed?
>> Well, partnerships are a little unusual.
That's why they're so interesting. Most of the time, animals compete with each other for things like space, mates, and most often food. Partnerships happen when each animal partner benefits the other and each does better as a result.
And coral reefs are a good place to see that happening. But some animals just benefit from other animals without giving back, right?
>> Absolutely. Take the coral reef crab for example. It lives under the spines of the black sea urchin. Now, the urchin doesn't get anything out of it, but the crab gets some well needed protection.
>> Cool. Okay, now tell me the truth. Is a coral reef really alive?
>> You bet it is, pal. The hard coral is part of the shell-like home of the polyps, and millions of polyps live together, building the reef year after year.
>> Do reefs really get sick like you showed?
>> Unfortunately, they do [music] for lots of different reasons, including pollution and other human activities that harm reefs and the animals that live in them.
>> Speaking of animals, aren't the ones that cooperate just being nice to each other?
Sorry, animals aren't nice, except maybe to their babies. In fact, they tend to eat each other a lot. Thanks for calling and thanks for your interest in coral reefs.
>> Hey, coral reefs are one of the world's great treasures. We need to do what we can to protect them.
>> You got that right, partner.
Aren't you going to share your lunch, partner?
Never mind.
>> Hey, Ralphie, wait for me.
[music] >> [crying] >> Wanda, I can't move.
Yes. How's it going, Liz?
>> Aren't you psyched? The Frizz is taking us to the beach today. Don't forget, we can't go until after our reports. And let's keep the reports short, Da. Yep.
Where there's a will, there's a wave.
[laughter] >> We brought sand in a crab shell for our two beach things that go together report, didn't we, Carlos?
>> Wa! A humongous wave at 10:00.
>> See, crabs dig in the sand. So, crabs and sand go together. [screaming] >> Wipe out.
[laughter] >> What did you bring, Ralphie?
Ah, hello everyone.
>> Hi, you guys.
>> Phoebe. Phoebe, did you bring the dunrass? Ralphie, have I ever let you down? Did you bring the sun? Actually, I couldn't fit it in my knapsack, but I did bring this. [gasps] The sun in all its glory. At my old school, we weren't allowed to bring the sun to class.
>> How about you, Tim?
>> Check it out. A stunning portrait of the rock to go with Wanda's muscle. You did bring the muscle, didn't you, Wanda?
[music] >> Tada!
One muscle to go with Tim's rock. I named him Gus the muscle. Gus for short.
Who's Gus for short? Hi, Kesha. Gus is the muscle I brought for the two beach things that go together at port. See?
Oh, no. Oh, help. Oh, bad. Oh, bad. Bad.
Oh, bad, bad, bad, bad, bad, bad, bad, bad.
>> Something wrong? I totally forgot about the report. You did? You didn't bring anything. Just my swimsuit and a towel.
and a tuna fish sandwich.
>> Uhoh. What's wrong with that? I love tuna sandwiches. Listen, don't panic yet. Who's your partner?
>> Arnold.
>> Don't worry. Arnold likes reports. He probably did the whole thing himself.
>> Where is Arnold anyway?
>> Arnold.
>> Hi guys.
>> Yuck. What happened to your shoe? I was running and I sort of stepped into the pond near our house.
>> And you were running because you're in a hurry because you couldn't wait to show me what you did for our two beach things that go together report, right?
>> Mom, I knew I forgot something.
>> You mean you didn't bring anything either? Just my bathing suit and a towel and the scum on your shoe. [laughter] Scum and a tuna fish sandwich. Da, why didn't we think of that? But do scum and a tuna fish sandwich go together?
>> Hey, maybe they do. Think, think, think, think, think, think, think.
No. Oh, great. Not only do I get slimed by pond scum, but I forget my report. I knew I should have stayed home today.
Hey, we can't just give up, Arnold. We have to work with what we've got.
>> But Kesha, >> good morning class.
>> Good morning, Miss Frizzle.
>> We have an exciting day ahead of us, haven't we?
>> Hey, you guys. Maybe she'll forget the reports.
>> And the first thing on the agenda is your two beach things that go together, reports.
>> Then again, maybe she won't.
H. Let's start with um Ralphie and Phoebe.
>> Why the sun and dune grass go together by us? All rights reserved.
>> Dune grass, like other plants, uses the energy from the sun to make its own food. No sun, no doomgrass, no sun, no nothing.
Oh, Kesha and Arnold, why don't you go next?
>> Yes. Well, um uh we brought this um nutritious tuna fish sandwich and this delightful green scum.
>> You did? Why, that is absolutely fantastic.
>> It is.
So tell us what the connection is between delightful green scum and a nutritious tuna fish sandwich.
>> Um uh um they both have um adjectives.
>> Oh dear. Hold that thought. It's time to go to the beach. Oh, but don't worry.
[music] We'll finish your reports when we get back. Line up by the door, please. Saved by the bell.
>> Yeah. I never thought I'd be glad to go on a field trip. [music] Oh, for once. A nice, peaceful day at the beach. Forget it, Arnold. Everyone else will have a wonderful time, but we've got work to do. Now, concentrate.
How does your scum go with my sandwich?
You know, class, this trip just might give you the answer you're looking for.
>> I wonder if she knows we don't know.
>> She knows everything.
>> Well, not exactly everything. It's your job as scientists to look for connections.
>> Connections? You mean how things [music] go together?
>> Exactly.
We're here. Everybody out.
>> There's doom grass with the sun beaming [music] down on it.
>> And here's a rock >> covered with Gus's family. Look at them all.
>> It's a regular muscle beach, >> Carlos.
>> And here's a crab burring [music] into the sand.
Look up there.
That's a go, isn't it? I wonder what it's doing.
>> Wow, it just ate that crab.
The beach air is making me hungry. H, everyone else's reports seem so obvious.
Arnold, you're eating our report. Oh, sorry. I forgot. Arnold, we've got [music] to figure out the connection between my sandwich and your scum.
>> Ready to explore this environment in a bit more depth?
>> Huh? Now, >> but we just got here.
>> Uh-oh. I'm getting that old field trip feeling again. Come on, Arnold. I know we can figure it out if we try.
>> Seat belts, everyone.
H2O, here we go.
I appreciate an away. My class anchors away.
>> Think, Arnold. Think. I can't. I hate it when my socks get wet. Can I have my shoe back?
>> No way. We need it for our report. Ooh, look. There's some seaweed.
>> What are those? They're beautiful. Those are sea urchins, Tim. They eat seaweed >> and sea otterters eat them.
>> Do you really think they otter? Bad, Carlos?
>> Are you looking, Arnold? What do you see down there?
>> Well, I'm trying hard to look for connections. Just as you say, but I can't see past all that green stuff.
>> Yuck. It's gone all scummy.
>> Did you say scummy? That's it. Look, Kesha. Scum.
>> Excellent observation, Arnold. This scum is called phytolankton.
>> Phyto plankton. Phyto plankton.
>> Phyto plankton.
>> Yes. Little tiny plants.
>> Wait a second. Does that mean the scum on Arnold's shoe is some kind of phyto plankton?
>> Care to try my marvelous mega magnifier?
Mayaps.
>> Sea scum.
>> Shoe scum. Not exactly the same, but not far off.
>> What do you think, Kesha? Should we take a closer look?
>> Sure, why not? No, Kesha, you don't know what you're saying. I know that tone of voice. It means something weird IS GOING TO HAPPEN. [music] WOOHOO.
UM, did we just shrink?
>> We did. We are now as tiny as phto plankton.
>> And that's seriously tiny.
>> Pass. You will notice that the bus is equipping each of us with a specially designed underwater breathing mask. So get messy, make mistakes, get out there and explore.
>> I'll go first.
>> This is so cool and so wet.
>> Wow. And remember, look for connections.
>> Got them.
>> [music] >> I don't get it. How are we supposed to find a tuna fish sandwich in the middle of the ocean when we're the size of phytolanton? Who knows? Maybe there's teenytiny phytolanton operated sandwich dins.
>> And to think that when we're big, all this just looks like green scum.
>> Amazing, isn't it?
Arnold, what are you doing? Who? Me?
Arnold, we have to figure out what all this has got to do with my tuna fish sandwich. And we have to figure it out now.
>> Hey, Kisha, look at me.
[screaming] Is it my imagination or do they look hungry?
[screaming] >> It's not [music] just you, Ralphie.
These bigger creatures are eating the phytolanton. So, as I always say, it's better to be in the bus >> than to be in something else.
Nature never ceases to amaze me.
[screaming] >> We were nearly lunch at first sight.
Just your average day at the beach with the frizz.
Okay, bus, do your stuff.
>> Congratulations. We are now the size of zor plankton.
>> Z plankton? I wonder if that's what just tried to eat us.
>> Very good, Kisha. Zor plankton eat phytolankton. Zor plankton are tiny animals that live in the water. This way, class, we've got to take chances.
Get messy, kitty, >> and don't forget to look for connections.
>> Oh, Miss Frizzle, this is a big ocean.
I'll never find a connection between scum and a tuna fish sandwich.
>> Of course you will, Kesha. Stay with your partner.
>> But hey, Kesha, we thought phytolankton looked weird. Get a load of these guys.
>> They are not guides, Carlos. There is no plankton. There don't seem to be as many of them as there were the phytolanton.
>> Good observation, Tim. What else do you notice? Anyone?
>> Those giant things.
>> Very good, Phoebe. Those giant things are anchovies.
They're a kind of fish.
>> Anchovies? You mean the salty things my dad puts on his pizza when he doesn't want me to eat it?
>> You may not like anchovies, Rafie, but they might like you. I wonder if that's because we're the size of Zop plankton.
>> Kishha's right, class. As you can see, anchovies eat zoplankton.
Can anyone guess where this is leading?
>> To lunch.
>> Precisely. All right, everyone. Back in the bus. [screaming] >> Ready, bus.
Well done. We are now the size of an anchovy. I suggest we stay in the bus [music] while we have our lunch.
>> But there's so much to see out there.
>> Oh, excellent observation, Wanda.
>> At my old school, we always had to stay in the bus if we ate lunch in the ocean.
>> Since we can't eat our report, do you want some organic potato chips? No thanks. I had some phytolanton earlier.
>> You did? Listen, Arnold. Time is running out and we don't have our report yet.
Scum. Tuna fish sandwich. Scum. Tuna fish sandwich. What's in a tuna fish sandwich anyway?
>> Mayonnaise, tuna fish, maybe a little vinegar, some chopped celery.
>> Did you say tuna fish?
>> Um, yeah.
>> Arnold, you may accidentally be a genius. What does a tuna fish look like?
>> I don't know. I never saw one without mayonnaise. Da, quick, there's got to be a picture of a tuna fish in one of your books.
Here, an albor tuna.
I got it. I've got [music] the connection.
What eats phytolanton? Z plankton. And what eats zop plankton? Little fish like anchovies.
>> And what eats little fish like anchovies?
>> Well, I knew I should have stayed home today.
>> Class, we are now inside an Albaort tuna.
>> Cheer up, Arnold. We're off the hook.
You know how your scum and my tuna fish sandwich are connected?
>> You know, it's a tuna eat scum world out there.
>> No, no, no. Listen, tuna don't eat scum.
Scum gets eaten by zoplankton, which get eaten by little fish like anchovies, which get eaten by tuna. Our reports in the bag.
>> But the bag's in a tuna's tummy.
>> Who knows what you call something that's connected, linked together? You mean like a chain?
>> Oh, very good, Tim. Tuna are linked to phytolankton by what they eat. Tuna and phytolanton belong to the same food chain.
>> Food chain. A chain of food. I could get into that.
>> Me, too. Phytolanton, zoplankton, fish, and people, too. We're all in a food chain. Scum, this fish, and you.
Humans are usually at the very top of the food chain, but for once, we're actually inside it.
We are also in the perfect position to study a tuna's digestive system.
>> What?
>> Now, >> Miss Frizzle, do you think we could go back to school now? Arnold and I need to do our report.
>> Well, if you insist, I guess we could leave the tuna's digestive system for another day.
Way to go. Close one.
Yes. Very good.
Okay, class. Take your seats. Here we go.
>> [music] >> Nope. Already have a bus.
>> Look out.
[screaming] [crying] >> This is it, Ralphie. The wave of our dreams. When we get back to the classroom, we will discuss our observations. Serves up.
>> Arnold, do you observe what I observe?
She's hanging 10. There really is more to Miss Frizle than meets the eye.
So, to wrap up our [music] report, allow us to show you the artwork we've commissioned. An original Tim.
>> Here we have our recent experience. The ocean food chain. It works like this.
Scum or phytolankton are eaten by zop plankton which are eaten by small fish like anchovies which are eaten by big fish like Jira. It's so efficient.
Carlos >> and this class is a land food chain.
>> Yeah. A mouse eats grass seed.
>> A snake eats the mouse. And the hawk eats the snake.
The hawk is at the top of this food chain. What's at the bottom? H I think it is.
>> Grass.
>> So, what's at the bottom of the ocean food chain?
>> Well, I think phytolanton.
>> And what do phytolankton and grass have in common?
>> You step on them both, >> Arnold.
They're both plants. Hey, wait a minute.
Do all food chains begin with plants?
Yes, they do. EACH AND EVERY ONE OF THEM. [screaming] >> WELL, if Scum and a tuna fish sandwich are connected, I guess just about everything must [music] be connected somehow, huh? Hey, where's my shoe?
[music] >> [music] >> Nature never ceases to amaze me.
>> As I always say, if the shoe is clean, wear it. [laughter] Is this the magic school bus?
>> Is this the magic school bus?
>> Magic school bus.
>> Magic the magic bus. Magic school bus.
>> Magic school bus. Magic school bus.
Magic magic school bus. I want the magic school bus. I WANT THE MAGIC SCHOOL BUS.
>> [music] >> HELLO.
>> HI. Is this Big Al's Total Pig Out Emporium? I'd like to order a toasted Big Al special with >> Whoa, whoa, wait a second. Wrong number.
This is the Magic School Bus show.
>> No way. I was just watching it. That's why I was so hungry. Maybe you can clear up a few things for me.
>> I'll try. People are on top of the food chain, right? Except I don't eat just tuna. I eat lots of things. So, am I on top of lots of food chains?
>> You are.
>> So, what do you call a lot of chains put together? A pile? Am I at the top of a food pile?
>> Actually, a lot of different [music] chains mixed together are called a food web.
>> I get it. So, if things are connected in a chain, what if something happens to one part of the chain? Well, it'll make something happen to everything else in the chain. It's all connected.
>> Okay. But you know, it's not true that all the food chains start with plants. I read about some plants and animals living deep in the ocean that get their energy from chemicals.
>> Yes, but they're weird.
>> Weird? You say they're weird since when does a tuna eat a school bus?
>> It could if the bus were small enough and look like a delicious anchovy. Yes, but you and I both know [music] school buses don't shrink and they don't go in the ocean.
>> Magic school buses do. Being magic can make all the difference.
>> And Ms. Frizzle must be magic.
>> Why do you say that?
>> Cuz somehow she can hang 10 between math lessons and report marking. [laughter] >> I guess you're right. Thanks for calling. Bye.
Why, thank you, Liz. This looks del rats.
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