Across
- 5. eat or drink or that plants absorb in order to maintain life and growth.
- 6. - A cell is a mass of cytoplasm that is bound externally by a cell membrane.
- 7. from glucose are called
- 8. energy- A form of energy consisting of particle-like photons with wavelike properties.
- 10. energy-the energy which is stored in the bonds of chemical compounds molecules and atoms.
- 13. - the reactions organisms use to get
- 14. a chemical element that constitutes 21 percent of the Earth's atmosphere
- 16. to or consisting of living cells.
Down
- 1. the matter from which a thing is or can be made.
- 2. strength and vitality required for sustained physical or mental activity.
- 3. dioxide - a colorless, odorless gas produced by burning carbon and organic compounds and by respiration.
- 4. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- 9. a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.
- 11. basic unit of a chemical element.
- 12. - any nutritious substance that people or
- 15. - Glucose is the main type of sugar in the blood and is the major source of energy for the body's cells.