🔬 Part 1: Properties of Matter

1. Which state of matter has particles that are tightly packed and vibrate in fixed positions?

Solid

Liquid

Gas

2. Select all properties that describe liquids:

Takes the shape of its container

Has a fixed volume

Particles move freely in all directions

Can be poured

3. Complete the sentence: In gases, particles are _________ apart and move _________ in all directions.

far / close together slowly / quickly

4. Give two examples of each state of matter found in your home:

Solids: _________________ and _________________

Liquids: _________________ and _________________

Gases: _________________ and _________________

🔄 Part 2: Changes in Matter

5. Which of these changes is reversible?

Burning wood

Melting ice

Cooking an egg

Rusting metal

6. Classify these changes as reversible (R) or irreversible (I):

_____ Freezing water into ice cubes

_____ Baking a cake

_____ Dissolving sugar in tea

_____ Burning paper

_____ Melting chocolate

7. Explain the difference between a reversible and irreversible change. Give one example of each.

8. When water is heated to 100°C, it changes from a _________ to a _________. This process is called _________.

🌿 Part 3: Traditional Knowledge & Applications

9. First Nations Australians have used natural materials for thousands of years. Research and describe one traditional use of matter (solid, liquid, or gas) by Aboriginal or Torres Strait Islander peoples.

10. Think about cooking damper bread. Describe what happens to the matter (flour, water, etc.) during this process. Is this change reversible or irreversible? Explain why.