Across
- 2. A classification of planets that are made out of ice.
- 4. Example is of it is Pluto.
- 6. The Polish astronomer who proposed the model of solar system we use today.
- 8. the smallest planet
- 11. Red planet
- 12. other name for inner plants
- 13. pieces of rocks from the fragments of other planetesimals.
- 15. Largest planet
- 16. Shape of the moon of Mars
- 18. The period of the year that characterized by changes in weather.
- 19. An imaginary line that passes through the center of Earth.
- 20. It has 16 moons including Triton
- 21. The motion where the earth revolves around the sun
- 22. Who propose the Geocentric Model
- 23. Biggest planet in the inner planets
- 24. Hottest planet
- 27. It rotates on it's axis every 17 earth hours
- 28. largest Object in the solar system
- 30. The model we used for our solar system
Down
- 1. Planets found beyond Mars.
- 3. Keeps the planets and objects in orbit around it.
- 5. Natural Satellite of Earth
- 7. Cosmic snowballs of ice, rock, and gas.
- 9. In Geocentric Model it is the Center of Solar system.
- 10. Are inactive, rocky bodies or cratered irregular surfaces.
- 14. The spinning of Earth on its axis
- 17. the planets near the sun.
- 25. Second largest planet
- 26. A classification of planets that are made out of gas.
- 29. a model proposed by Greek astronomer.