Science

4. An instrument to measure temperature.
7. What do you call it when the air, water or land is dirty.
8. In a science experiment, a ___ variable is changed to see a different result.
11. You have five ___. The ___ of sight, smell, sound, taste and touch.
12. Water is a ___ at zero degree celsius.
13. Humans and animals need to breathe ___ to survive.
14. The ___ is the basic biological unit of all known living organisms. We are made out of them.

1. The tongue is able to identify sweet, salty, sour and ___ tastes.
2. is a process used by plants to turn sunlight into fuel.
3. ___ energy is the energy of motion, observable as the movement of an object.
5. A ___ is a scientist who studies living organisms.
6. Earth orbits around the ___.
8. A ___ is an instrument used to see objects that are too small for the naked eye.
9. When metals are heated to their melting point, they turn from solid to ___.
10. Isaac ___ discovered gravity.