Science 101 Kids

2. The process of changing a liquid into a gas, usually by heating.
5. A unit of measurement for time, equal to 60 seconds.
6. A scientist who studies living organisms and their interactions with each other and their environment.
8. The outermost layer of the Earth's atmosphere.
11. A natural satellite that orbits a planet.
13. The process by which water vapor turns into liquid water.
14. A large, flightless bird native to Australia.

1. A force that pulls all objects with mass toward one another.
3. The largest planet in our solar system.
4. The study of stars, planets, and other objects in space.
7. The process by which plants make their own food using sunlight.
9. The imaginary line that runs from the North Pole to the South Pole through the Earth's center.
10. The layer of the Earth's atmosphere just above the troposphere, where airplanes fly.
12. The planet closest to the sun in our solar system.