Across
- 2. What are the objects in space that are smaller than planets?
- 3. What is it called, when the earth was frozen in 650 million years ago?
- 5. What are they called, When meteoroids enter Earth’s atmosphere?
- 8. The planet where humans live
- 9. What is it called, when the Earth has cycled between relatively warm periods and relatively cold ones
- 10. What is the average temperature and sustained cycles of weather over a prolonged period?
Down
- 1. What are the Objects in space that are smaller than an asteroid?
- 4. .... can change from day to day
- 6. .... is melting ice.
- 7. What are The parts of meteoroids that do collide with Earth?