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🔬 Science, Years 7 and 8

Years 7 to 8 · Read up first
10 questions. Get 8 right to earn 10 minutes. All 10 right = +5 bonus. They start easy and get harder as you go, so treat the first few as a warm-up. Every one you miss comes back with the answer and why.

1. Which of these is a renewable energy source?

2. Which group includes only animals that produce milk for their young?

3. What is a substance made of two or more different elements chemically joined together called?

4. Which system in the body is mainly responsible for breaking down food so it can be absorbed?

5. Metals are generally found on which side of the periodic table?

6. Which structure in a plant cell captures sunlight to make food?

7. What do scientists call the two-part naming system that gives every species a unique Latin-style name?

8. Burning wood produces ash, smoke and heat. Why is this a chemical change rather than a physical one?

9. Which group of the periodic table contains elements that barely react with anything else?

10. A star that is much further away than another can still appear bright in the night sky. What does this tell you about that star?

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