Across
- 2. Day and night happen because Earth ______.
- 3. Mercury, Venus, Earth and Mars are all inner _____.
- 5. Orion is a _______ that we can see in winter.
- 6. The different shapes of the moon that we see are ______.
- 7. The sun is a medium-sized _____ that gives heat to Earth.
- 8. Earth's tilt and revolution around the sun causes ______.
- 11. It takes Earth about 365 days to _____ the sun.
Down
- 1. A star and all the objects that move around it.
- 4. We can see the stars by using a _______.
- 9. When the Northern Hemisphere is tilted toward the sun, it is ____.
- 10. Earth spins or rotates on a tilted ______.