What is Matter, Molecule & Atom? Simple Classroom Explanation | FacXJunction

Added: 2026-05-26

[00:00:00]Have you ever wondered what everything around us is made of?

[00:00:04]The air you breathe, the water you drink, your mobile phone, your body, even the stars in the sky, everything is made of something called matter.

[00:00:14]So, first, what is matter?

[00:00:17]Matter is anything that has mass and occupies space.

[00:00:22]Very simply, if something takes up space and has weight, it is matter.

[00:00:27]For example, water is matter.

[00:00:30]A chair is matter.

[00:00:31]Your notebook [music] is matter.

[00:00:33]Even the air around you is matter, although we cannot see it.

[00:00:37]Matter mainly exists in three common states, solid, liquid, and gas.

[00:00:44]Solids have fixed shape and size, like a stone.

[00:00:47]Liquids can flow like water.

[00:00:49]Gases spread everywhere, like air.

[00:00:52]But, matter is not just one solid piece.

[00:00:55]It is made of extremely tiny particles.

[00:00:58]These tiny particles join together to form molecules.

[00:01:02]Now, what is a molecule?

[00:01:04]A molecule is a group of atoms joined together.

[00:01:08]For example, water is made of water molecules.

[00:01:12]Each water molecule contains two hydrogen atoms and one oxygen atom. That is why water is written as H2O. Now comes the smallest part, the atom. An atom is the basic building block of matter.

[00:01:28]Everything in this universe is made from atoms.

[00:01:32]Atoms are so tiny that millions of them can fit [music] inside a small dot made by a pencil.

[00:01:38]Inside every atom, there are even smaller particles called protons, neutrons, and electrons.

[00:01:46]Different combinations of atoms create different materials around us. For example, carbon atoms can form coal, diamond, [music] or even parts of the human body.

[00:01:58]So remember this simple chain.

[00:02:00]Matter is made of molecules and molecules are made of atoms.

[00:02:06]Understanding atoms helps scientists create medicines, electronics, aircraft and even space technology.

[00:02:16]Science may look complicated but everything begins with these tiny building blocks of the universe.