Across
- 4. an accomplishment
- 7. A class that involves a lot of numbers
- 8. Our cars, factories, and homes create this and send it into the air we breathe
- 10. An invisible line that divides the earth into two hemispheres
- 11. to be excited about something
- 12. This does not exist in space, but we are stuck on the ground on Earth because of it
Down
- 1. scientists do these to learn more about the world around us
- 2. A combination of plants, animals, living, and non-living things all occupying the same "home"
- 3. People go on these to discover new things and explore things or places
- 5. To possess or to take
- 6. erupts periodically, typically spewing lava
- 9. to keep trying over and over again