Across
- 2. How much matter is in an object
- 6. Layers of gas surrounding a planet
- 11. Four divisions of the year
- 15. Made up from the sun, planets, and other small celestial bodies
- 17. A celestial body the orbit the sun that is made up of rock and ice
- 18. The rate of which something moves, is done, or acts
- 20. An imaginary line that Earth uses to rotate
- 21. Earth is assumed to be the center of everything
- 22. Designed in a controlled flight in Earth's atmosphere
- 23. Matter is composed by this, it cannot be broken down into simpler substances
- 25. How fast something moves in a particular direction
Down
- 1. A small celestial body that orbits the sun, but is not classified as a planet or a moon
- 3. Covering a part of a celestial body by another
- 4. Anything that has mass and volume or anything that takes up space
- 5. Rise and fall of the world's oceans and are controlled by the Sun and moon's gravitational pull
- 7. A body of matter from outer space that vaporizes when it enters Earth's atmosphere
- 8. An invisible force that pulls objects toward each other
- 9. A rocky body that orbits the sun
- 10. Opposites, there is a negative and positive side
- 12. An instrument used to see planets and stars in space, they make things seem closer than they appear
- 13. A circular motion around an object around the center
- 14. How the universe was beloved to be created
- 16. The Sun is assumed to be the center of everything
- 19. A celestial body moving around a star
- 24. A celestial body going around in an orbit