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Matter and Changes Vocabulary
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Matter and Changes Vocabulary
🧪 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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