Across
- 2. What planet has phases similar to Earth's moon?
- 5. Who invented the telescope?
- 6. What word means sun?
- 7. What approach do we use for scientific questions?
- 8. What shape did Kepler believe the planets moved in?
Down
- 1. Which astronomer in planets going in perfect circles?
- 3. Which of kepler's three Laws states that planets move faster in orbits when closer to the sun?
- 4. What is one of Jupiter's moons Galileo observed?