Across
- 2. the nearly circular path a smaller object (like the Moon) travels around a larger object like Earth)
- 5. Moon the moon during the phases in which the part illuminated by the sun gets larger (new moon to full moon)
- 6. the amount of time it takes for a planet to complete one orbit around a star or stars
- 8. the shape of the illuminated part of the Moon as it appears from Earth
- 10. to shine light on an object and make it visible
- 11. The moment that the moon orbits directly between the sun and the Earth
- 12. the force by which all things with mass or energy (including planets, stars, galaxies, and light) are brought towards one another
- 15. all of space and its contents (including planets, stars, galaxies, and all other forms of energy and matter)
- 16. the relative size of things
- 18. a collection of gas, dust, stars, and solar systems that are held together by gravity
- 19. a moon phase that looks like more than a half circle from Earth
- 20. a moon phase where the Moon is not visible from the Earth
- 22. a moon phase that looks like half a circle from Earth
- 25. the force that pulls two objects together due to their mass
Down
- 1. the sun, the planets that orbit the sun, and other objects that orbit the sun
- 3. the tendency of an object to remain at rest or unchanged
- 4. the border between light and dark on the Moon
- 7. a moon phase that looks like less than half a circle from Earth
- 9. when the moon is completely dark
- 13. a moon phase that looks like a full circle from Earth
- 14. 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
- 17. the moon during the phases in which the part illuminated by the sun gets smaller (full moon to new moon)
- 21. a rocky sphere that travels around a planet
- 23. the circular movement of an object around its center (like a top spinning)
- 24. the star that is the main source of light at the center of our solar system