Across
- 3. An invisible force that pulls things towards each other. It's what makes an apple fall to the ground and keeps us on Earth.
- 4. The curved path that one object takes around another object in space. Planets orbit stars.
- 7. System A star (like our Sun) and all the planets, moons, asteroids, and comets that orbit around it.
- 9. A natural object that orbits a planet. Earth has one moon.
- 10. Everything that exists everywhere, including all space, time, matter, and energy. It's super, super big!
Down
- 1. A huge group of billions of stars, dust, and gas held together by gravity. Our solar system is in the Milky Way Galaxy.
- 2. A huge ball of hot, glowing gas in space that makes its own light and heat. Our Sun is a star.
- 5. A tool that makes faraway objects in space look closer and bigger, helping us see planets, stars, and galaxies.
- 6. A large, round object in space that orbits a star. Earth is a planet!
- 8. A rocky object, smaller than a planet, that orbits the Sun.