Across
- 4. a type of energy that generates a current - and gives us light!
- 5. the jelly-like part of a cell between the cell membrane and the nuclear membrane
- 7. a proposed explanation for an event that is often then tested!
- 9. a community of living organisms in a single major ecological region
- 11. the molecule that defines our genetic inheritance
- 12. the scientific study of the properties, distribution and effects of water on Earth
Down
- 1. this is where you might conduct scientific experiments!
- 2. the complete elimination of a species from Earth
- 3. fluid matter that is not a solid and not a gas!
- 4. a protein that increases the rate of a chemical reaction without being changed itself
- 6. a type of energy that involves heat moving molecules
- 8. energy that travels in waves that we can sometimes hear
- 9. this is the discipline of science that studies living things
- 10. this element is part of our atmosphere and animals need it to breathe!