Across
- 3. type of respiration that requires oxygen
- 4. a reaction that loses heat to its surroundings is called an ______________ reaction
- 8. group 1 metals are known as ________ metals
- 9. type of respiration that produces lactic acid
- 10. what organ system the lungs are found in
Down
- 1. energy resource that comes from the sun
- 2. coal, oil and natural gas are examples of _______________ energy resources
- 5. particles moving from a high concentration to a low concentration is called d________
- 6. the process plants use to produce glucose and oxygen
- 7. what is used to help to speed up a chemical reaction?