States of matter

Three States of matter for kids


The matter is anything that has weight and takes up space. Everything you can see and touch is made up of matter.

For example,

When you lift something, you feel it has some weight and when you keep something somewhere it takes some space.

All the matter exists in three forms:

  1. Solid
  2. Liquid
  3. Gas
solid liquid gas
solid liquid gas


Solids are materials that have a defined shape and volume.

For example, the book, Pencil, and Ice-Cream is solid.

Solids have a definite shape that only changes when a force is applied.

The molecules in solids are closely bound together.

When a solid becomes a liquid, this is called melting.

When solid ice cream melts in form of liquid this process is called melting.  


Liquid has a definite volume, but it does not have a definite shape.

When you pour water into a glass. Water fits into glass according to glass shape, but volume remains the same.

Water, milk, oil, and Blood are examples of liquid.

Molecules of liquids are less tightly packed than Solid.

The molecules are not arranged in any specific pattern, so they can move around and slide past each other. That’s how a liquid changes its shape.

When a liquid becomes a solid, this is called freezing.

When water keeps in the fridge at a low temperature the water turns into Ice this process is called freezing.


Gases do not have a fixed shape or volume.

Gases can be squeezed and compressed into a space.

This is because there’s a lot of space between the molecules.

An example of gases is air.

Air is all around us but most parts of the atmosphere contain Nitrogen and Oxygen gas.

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