What is the difference between a solid, liquid and gas?

Gas

Gas

Run in place very fast for a minute. Do you notice how hard you are breathing? What you are breathing is oxygen? You need oxygen to live. That's why you can only hold your breath for a certain amount of time.

You can't see oxygen. It's invisible. It is a gas. A gas is matter that has no shape or size of its own. Gases have no colour.

Gases are all around you. You can feel gas when the wind blows. The wind is moving air. Air is many gases mixed together.

Solids, Liquids, Gases

SOLIDS
• Keeps its own shape
• All particles are very close together

LIQUIDS
• Fills the shape of the container
• Particles are not close together

GASES
• Fills all the space around them
• Particles are not close together

Solid, Liquid and Gas

States of Matter

To begin the term we are going to look at Change of state. Our BIG IDEA for the year is 'Change'. Take a look at this YouTube video to see how the particles are arranged for solids, liquids and gases.