Across
- 1. the moon seems to be getting smaller
- 3. the moon seems to be getting larger every night
- 8. based on earths tilted orbit around the sun
- 9. the angle between the planet's rotational axis and its orbital axis
- 10. layers gases surrounding earth
Down
- 2. a reaction that forms with two or more atomic nuclei
- 4. attraction to things that have mass
- 5. formed by a piece of earth
- 6. formed by gas and dust
- 7. based on moon gravity
- 8. spheroid of plasma held together by self gravity