Across
- 2. the smallest structural and functional unit of an organism
- 3. Basic unit of an element
- 5. A proton is a subatomic particle found in the nucleus of every atom, has a positive electrical charge.
- 6. No definite shape but a definite volume
- 7. The powerhouse of the cell
- 10. solid to gas
- 14. a usually round part of most cells that is enclosed in a double membrane, controls the activities of the cell, and contains the chromosomes
- 15. any of a number of organized or specialized structures within a living cell.
- 17. A neutron is a subatomic particle found in the nucleus of every atom except that of simple hydrogen, has no electrical charge
- 19. A group of atoms bonded together
- 21. the charge that an electron has
Down
- 1. An electron is a tiny particle of matter that is smaller than an atom and has a negative electrical charge.
- 4. gas to liquid
- 7. a measure of the amount of matter in an object
- 8. A state of matter that only exists in extremely high temperatures
- 9. apparatus a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
- 11. a substance that cannot be further broken down by any chemical reaction
- 12. something that has a definite volume and shape
- 13. the charge that a proton has
- 16. Something that takes up space
- 18. how much space an object or substance takes up
- 20. any substance composed of identical molecules consisting of atoms of two or more chemical elements
