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6. How does sound travel?
- Passing through things
- Through the air
- It's transmitted by particles vibrating
- Through our ears
7. Which one of these is least reactive?
- Potassium
- Gold
- Calcium
- Copper
8. What does the cytoplasm do?
- Carrys oxygen
- Carrys genetic information
- It is made up of water and dissolved substances
- Controls the structure of the cell
9. How many atoms does a compound contain?
- i dont know
- 2 or more
- 1
- 0
10. What's an insulator
- A type of metal
- Something which doesn't let heat pass through it
- A type of plastic
- Opposite of a conductor
11. How many substances does a mixture contain?
- 0
- 2 or more
- i dont know
- 1
12. What's a conductor?
- Something that let's heat pass through it
- Someone who directs a musical performance
- Something that let's sound travel through it
- I dont know
13. What does a nucleus do?
- Carrys genetic information and controls the structure.
- Surrounds the cell
- Controls the movement of substances in and out of the cell
- Carrys oxygen
14. What is the chemical equation for Photo Synthesis?
- water + sun ---> oxygen + glucose
- carbon dioxide + oxygen ---> glucose + water
- carbon dioxide + water ---> glucose + oxygen
- oxygen + water ---> glucose + carbon dioxide
15. Which one is a property of a metal?
- High boiling point
- Poor conductor of electricity
- Easy to break
- Soft