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Matter and Changes Vocabulary

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Matter and Changes Vocabulary

Science laboratory equipment illustration

🧪 Part 1: Vocabulary Definitions

1. What is matter?

Anything that has mass and takes up space

Only liquids and gases

Something you can see through

Energy in motion

2. A mixture is:

Two or more substances combined but not chemically bonded

A single pure substance

Always a liquid

Something that cannot be separated

3. What is a solution?

A mixture where one substance dissolves completely in another

Any solid material

The answer to a math problem

A type of chemical reaction

4. Conservation of mass means:

Mass cannot be created or destroyed in a chemical reaction

Mass always increases during reactions

Mass disappears when things burn

Only heavy objects have mass

🔬 Part 2: Types of Changes

5. A physical change is:

A change in appearance but the substance stays the same

When a new substance is formed

Always involves fire

Cannot be reversed

6. A chemical change is:

A change that creates a new substance with different properties

Just changing the shape of something

Melting ice

Cutting paper

7. Which are examples of physical changes? (Check all that apply)

Melting butter

Burning wood

Freezing water

Tearing paper

8. Which are examples of chemical changes? (Check all that apply)

Rusting iron

Baking a cake

Boiling water

Digesting food

📝 Part 3: Apply Your Knowledge

9. Give one example of a mixture you might find in your kitchen:
10. Explain why ice melting is a physical change, not a chemical change:

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