Across
- 4. make their own food
- 6. stuff going into a system
- 11. smallest unit of a chemical element
- 12. simple sugar, a carbohydrate
- 13. food molecules like starch and sugar
- 15. eat other organisms for energy
- 16. variable you change before the experiment
- 17. can do work; ex. light, heat, movement
Down
- 1. set of things working together
- 2. getting energy from sugar molecules
- 3. green structures in a plant, respond to light
- 5. stuff coming out of a system
- 7. carbon dioxide and water into glucose + H20
- 8. organelle converting chemical energy
- 9. more than one atom bonded together
- 10. unit of heat energy in food
- 14. variable that depends on the experiment