Across
- 6. the star at the center of the solar system
- 7. It emits its own radiation through nuclear fusion
- 8. it did not originate on Earth
- 9. first rocket to land on the moon
- 12. It moves in an elliptical orbit around a star
- 13. our home planet
- 16. balls of ice and rock that orbit the
- 17. My name is
- 18. My teacher calls himself
Down
- 1. the largest planet in solar system
- 2. it causes two bodies to attract each other
- 3. the explosion of a star
- 4. It orbits a planet or star.
- 5. small planetary bodies orbiting the sun
- 9. protons=(-)charge, electrons=(+) charge
- 10. the year the first rocket landed on the moon
- 11. a large grouping of stars
- 14. it makes distant objects appear nearer
- 15. another name for the moon
- 16. stars that make an imaginary picture