Across
- 3. Belt A group of asteroids that orbits the Sun between Mars and Jupiter.
- 4. Having origins of living or once living.
- 6. Planets Jupiter, Saturn, Uranus, and Neptune are ________________.
- 8. Very small living thing that requires a microscope to be seen.
- 10. A natural (moon) or artificial (space station) object that orbits another object in space.
- 11. Planets Mercury, Venus, Earth, and Mars are _______________.
- 12. Technology that helps scientists magnify very small objects.
- 15. Not Active- The state of being alive but not moving or growing.
- 16. is no longer considered a planet but a __________.
- 17. Made of only one cell.
- 19. To make an educated guess based on observations.
- 20. A sphere of hot glowing gases that releases energy in the form of heat and light.
- 21. Model A replica of something either bigger or smaller than the original object.
- 22. A rocky object that orbits a planet.
Down
- 1. Bears go into ___________ during the winter to survive.
- 2. A prediction- A possible answer to the question including a reason.
- 4. A tiny part of a cell having a special form and function.
- 5. The liquid inside of a cell.
- 7. System A star with other planets and objects in orbit around it.
- 8. Made of more than one cell.
- 9. The smallest sized unit of a living organism.
- 13. Objects made of rock and ice that orbit independently around the Sun.
- 14. To explain how things are alike.
- 18. Proof, facts, or data that supports a theory or hypothesis.