Conservation of Matter Worksheet
Explore the principle of conservation of matter with engaging questions for 7th-grade science students.
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Conservation of Matter
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Read each question carefully and answer to the best of your ability. Show all your work for calculation questions.
1. What does the Law of Conservation of Matter state?
Matter can be created or destroyed.
Matter is always changing its state.
Matter cannot be created or destroyed, only transformed.
Matter is an illusion.
2. If you burn a log, what happens to the mass of the log?
It is destroyed.
It turns into energy.
It is converted into ash and gases, but the total mass remains the same.
It increases significantly.
3. In a chemical reaction, the total mass of the reactants is equal to the total mass of the .
4. The Law of Conservation of Matter is also known as the Law of Conservation of .
5. When ice melts into water, its mass decreases.
True
False
6. A physical change, like tearing paper, does not follow the Law of Conservation of Matter.
True
False
7. Explain how the Law of Conservation of Matter applies to the process of photosynthesis.
8. A scientist mixes 10 grams of baking soda with 10 grams of vinegar in a sealed container. After the reaction, what would you expect the total mass of the contents in the container to be? Explain your answer.