Water Wonders: Exploring Solids, Liquids, and Gases

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Water Wonders: States of Matter

What do you already know about the three states of matter?

Learning Objective

At the end of the lesson you will be able to describe and investigate how water changes state, recognise the three states of matter, and identify their characteristics.

What Is Matter?

Matter is what makes up everything around us. It comes in three main forms: solids, liquids and gases.

Solids: Shape and Structure

Solids keep their shape. Their particles are tightly packed together, like bricks in a wall.

Gases: Invisible and Expanding

Gases spread out to fill their space. Their particles move quickly and are far apart.

Liquids: Flow and Flexibility

Liquids take the shape of their container. Their particles move more freely than solids, letting them flow.

Changing State: Melting and Boiling

When heated, ice melts into liquid water. When boiled, water turns into steam (a gas).

What Are Particles?

All matter is made of tiny particles. Their arrangement decides if something is a solid, liquid or gas.

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Spot the State: Is It Solid, Liquid, or Gas?

Investigation Time!

Watch an ice cube melt and record how it changes state. Write or draw what you observed.

How Do Particles Look in Each State?

Comparing States of Water

Flows easily, takes the shape of its container.

Solid (Ice)

Hard and keeps its shape. Cold to touch.

Liquid (Water)

Lesson Review

Can you name the three states of matter? How does water change from one state to another? What makes solids, liquids, and gases different?

Write down 3 things you learned in this lesson.

Write down 2 things you want to know more about.

Ask 1 question about something you haven't quite understood yet.