Across
- 4. rocky bodies that orbit larger bodies, such as planets, dwarf planets, and asteroids
- 5. one of the first scientists to use a telescope to look into outer space and see the moons of Jupiter.
- 6. the cloud of dust and gas from which the planets and sun formed is the solar ______, which eventually became disk-shaped
- 7. How many planets are in our solar system?
- 8. Isaac Newton discovered that _____ was a force that caused planets to orbit the sun.
Down
- 1. A representation that may be used to help understand the relative size and scale of a real system
- 2. the third planet from the sun
- 3. another name for a shooting star, or a meteoroid that enters earth's atmosphere