Across
- 2. The process of making food
- 4. A bundle of atoms
- 8. One of the elements in the periodic table
- 9. Places where earthquakes and volcanic eruptions often happen
- 10. Fastest speed known to exist
Down
- 1. A mountain with a crater on top
- 3. Used to measure the direction of the wind
- 5. One of the elements in the periodic table can be combined with hydrogen to create h2o
- 6. One of the elements in the periodic table can be combined with hydrogen to create h2o
- 7. A form of a wave that can be heard