Space Unit Test Vocabulary
Across
- 1. the characteristic of a star that determines its life-cycle
- 3. the reason why we only see one side of the Moon
- 7. largest planet in the solar system
- 9. season that the Northern Hemisphere is experiencing when it is titled towards the Sun
- 12. causes tides on Earth
- 13. can create impact craters on planets and moons
- 15. chunks of rock and ice that never clumped together in the same way as the inner planets
- 16. made of rocks, dust, and ice - orbit the Sun in long elliptical orbits
- 17. hottest planet in the solar system
- 18. term used to indicate the four planets closest to the sun
- 19. only dwarf planet located in the inner solar system
- 23. used to measure distances beyond our solar system
- 24. the Moon's shadow falls on the Earth during a ____________ eclipse
Down
- 2. when the Northern Hemisphere is either titled as close to or as far from the Sun as it will be all year
- 4. term used to indicate the four planets farthest from the Sun
- 5. where all dwarf planets except one are located
- 6. both hemispheres experience equal amounts of day and night on these special days
- 8. coldest planet in the solar system
- 10. a meteoroid that has entered Earth's atmosphere
- 11. season that the Northern Hemisphere is experiencing when it is titled away from the Sun
- 12. smallest planet in the solar system
- 14. unit used to measure distances within our solar system
- 20. when the wavelengths of color are stretched, evidence that the universe is expanding
- 21. the process through which stars generate their energy
- 22. the Earth's shadow falls on the Moon during a ____________ eclipse