Across
- 5. around twice as far from the sun as Saturn
- 6. is the measurement of the amount of matter, or stuff in an object
- 8. a ratio of the size of a real object to the size of a model of that object
- 9. Gravitational Force is measured with this unit
- 13. rocky planet that has about half the diameter as Earth
- 14. rocky planet closet to the sun
- 15. reason for the seasons
- 16. causes objects to be pulled toward each other
- 17. Over 30 times farther from the sun than Earth
- 18. rocky planet that is hottest
Down
- 1. is the imaginary line passing through Earth’s North Pole and South Pole
- 2. the amount of gravitational pull between two objects
- 3. is when the Moon passes into Earth’s shadow
- 4. rocky planet with a 23.5 degree tilt that causes seasons
- 6. different shapes of the Moon visible from Earth
- 7. is when the Moon passes directly between Earth and the Sun
- 10. Almost 10 au from the sun
- 11. is a scientist who studies objects and events beyond Earth’s atmosphere
- 12. biggest planet