CONTENTS

1. Solids, liquids and gases CONTENTS 1) Sort objects into the correct groups 2) Properties of solids 3) Properties of liquids 4) Properties of gases 5) What do you know about the states of water 6) Now try this Resource Author: Ms Judith Richards, Cherry Orchard Primary School, Birmingham

2. Let’s see how these objects are sorted into the correct groups. solids liquids gases Did you get them right?

3. Solids, Liquids and Gases SOLIDS • All particles in solids are packed tightly together and can hardly move. • Solids keep their shape. • Anything you can take hold of is solid.

4. Liquids • The particles in liquids are not so tightly packed and can move a little. • Liquids are runny and they flow downwards. • Liquids take up the shape of any container.

5. Gases • The particles that make up gases have lots of room and move all over the place, all the time. • Gases are all around us spreading into any empty space. • Most gases are invisible.

6. What do you know about the states of water? • Name the three states of water. • Give two examples of solids. • Give two examples of liquids. • Give two examples of Gases. • What do you know about the particles in solids, liquids and gases?

7. Now try this • To have fun exploring how some materials behave differently and change from one state to another. • What you need: • corn flour • Water • Mixing bowl • Small spoon

8. 1. Put three teaspoons of corn flour into a mixing bowl. • 2. Add water to the corn flour, only a spoonful at a time, while stirring and mixing with your fingers or spoon. Keep adding water until you get a very thick, creamy mixture, which feels like stiff liquid when you stir it very slowly. 3. See and feel what happens when you tap the surface of the mixture firmly with a finger or a spoon • 4. Pick up a handful of the mixture and squeeze it and roll it around firmly between your hands to make a ball. Then stop rolling and see what happens. .