Across
- 4. Mercury, Venus, Earth, and Mars are rocky or _____ planets
- 6. Kepler's _____ law states that planets move faster when closer to the sun due to gravitational pull.
- 7. What planets is similar in size to ours but has a very hot surface temperature
- 10. An __________unit is the distance between the Earth and the sun
- 11. Earth is the_______ planet from the sun
- 12. ________ theory is a hypothesis that states the solar system formed from a huge cloud of gas, ice, and dust.
- 14. Which planet closest to the sun?
- 15. Which planet is called the red planet due to iron oxide?
- 16. Mars has ____moons
- 18. __________planets are called rocky planets
- 19. the __________ effect makes the surface of Venus hotter
Down
- 1. What model of the solar system has Earth placed in the center and other planets and the sun orbit around it?
- 2. ___________are organisms that can be found in extreme environments
- 3. Mercury’s surface is highly ______
- 5. Jovian planets like Jupiter are _____________
- 8. Scientists study ____________ focusing on finding potential signs of life on planets outside our Solar system
- 9. _______ ice caps on Mars are made of mostly water and CO2
- 13. What model of the solar system has the sun placed in the center and other and the Earth and other planets orbit around it?
- 15. ______ on found on Earth provide attention information on Mars’s composition
- 17. What planet is unique to our solar system because it supports life