Across
- 2. The force that keeps planets in orbit around the Sun is
- 7. The longest phase in a star’s life cycle is the __________ stage.
- 12. The movement of Earth around the Sun is called
- 13. The path a planet follows around the Sun is called
- 15. The imaginary flat surface on which planets orbit the Sun is called
- 16. A telescope that uses mirrors instead of lenses is a __________ telescope.
- 17. The planet known for having the strongest winds is
- 19. When the Moon blocks sunlight from reaching Earth, the event is called
Down
- 1. The bending of light as it passes through different materials is called
- 3. A large system of billions of stars, gas, and dust held together by gravity is called
- 4. The four planets closest to the Sun are known as the __________ planets.
- 5. The force created by the outward push from a rotating system is called __________ force
- 6. The layer of gases surrounding Earth is called
- 8. The darker inner part of a sunspot is called the
- 9. Jupiter, Saturn, Uranus, and Neptune are classified as __________ planets.
- 10. A small, icy body with a glowing tail when near the Sun
- 11. The explosion that marks the death of a massive star
- 14. The movement of a planet spinning on its axis is called
- 18. The boundary that marks the edge of the Sun’s influence is known as
- 20. The closest star to Earth is