Across
- 1. made up of icy dust particles and frozen gases, they look like bright balls with long feathery tails
- 3. number of planets known to orbit the sun in our solar system
- 5. made up of the hydrosphere, lithosphere, and atmosphere, this is the part of the Earth where all life exists
- 6. small round bodies that orbit the sun and are too small to be considered (2 words)
- 9. ocean containing the deepest known depression on Earth
- 10. largest of the inner planets in the solar system
Down
- 2. number of continents on Earth
- 4. small, irregularly shaped, planet-like objects found mainly between Mars & Jupiter
- 7. continent where both the highest point on Earth the the lowest land point can be found
- 8. gas that composes 78 percent of Earth's atmosphere