space puzzle

3. Moon - a moon phase where the Moon is not visible from the Earth
5. - the force by which all things with mass or energy (including planets, stars, galaxies, and light) are brought towards one another
6. - the nearly circular path a smaller object (like the Moon) travels around a larger object like Earth)
8. - to shine light on an object and make it visible
12. - a rocky sphere that travels around a planet
13. - something we observe to be similar over and over again
15. Moon - a moon phase that looks like a full circle from Earth
16. Moon - a moon phase that looks like more than a half circle from Earth
18. Pull - the force that pulls two objects together due to their mass
20. Moon - a moon phase that looks like half a circle from Earth

1. - a collection of gas, dust, stars, and solar systems that are held together by gravity
2. Moon - a moon phase that looks like less than half a circle from Earth
4. - the four parts of the year where weather, ecology, and number of daylight hours change as a result of Earth’s orbit around the sun
7. - the circular movement of an object around its center (like a top spinning)
9. Phase - the shape of the illuminated part of the Moon as it appears from Earth
10. - a planet outside our solar system
11. - the tendency of an object to remain at rest or unchanged
14. - a moon outside our solar system
17. - the relative size of things
19. Eclipse - when the moon is completely dark