Across
- 3. Scientist who believed every particle attracts every other particle in the universe
- 5. The category of planets that are made of rock and metal.
- 10. Type of relationship where the variables increase or decrease together
- 12. Gravity is a force of ___________.
- 14. Newton believed gravity was _________.
- 15. The category of planets that are made of gas and ice.
Down
- 1. Spring tides happen during these two Moon phases-Full and _____.
- 2. Type of relationship where one variable increases as the other decreases.
- 4. Neap tides happen during the 1st and 3rd _________ Moons.
- 6. These tides happen when the Sun, Moon and Earth are aligned
- 7. Scientist who though heavier objects fall faster
- 8. Spring tides have very high ______ tides and very low low tides.
- 9. These tides happen when the Sun, Earth and Moon are at 90 degree angle.
- 11. Scientist who believed all object accelerate at the same rate when they fall.
- 13. The edge of our solar system, a collection of icy debris is called the _____ Cloud.