Across
- 3. believed in multiple solar systems, burned to death
- 5. get their energy by eating things
- 9. photosynthetic organisms, basis of food chain
- 10. most important product of petroleum
- 11. type of tapwater best for healthy drinking
Down
- 1. polish astronomer, sun centered solar system
- 2. little particles on an atom with negative charge
- 4. pure water, nothing in it, doesn't taste good
- 6. these females have the longest life expectancy
- 7. type of predatory seal in Antarctica
- 8. killer whales are this kind of predator