Across
- 3. a model that states that all physical matter exists in the form of particles
- 4. the law that states that the masses of chemical substances combine in defintie, characteristics integer ratios when forming compounds
- 5. a pure substance consisting of atoms of two or more elements that are chemically combined in a fixed ratio
- 7. the state of matter in which particles are close together but able to move around
- 9. the state of matter in which particles vibrate in fixed positions, giving a substance a fixed shape and volume
- 12. the state of matter in which particles are far apart, move rapidly, and have little interaction with each other
- 13. a material made of only one kind of element or compound
- 17. a particle consisting of two or more atoms covalently bonded together
- 18. the building blocks of all matter; consists of protons, electrons and usually neutrons
- 19. a physical combination of two to more substances in a changeable ration
Down
- 1. a mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid
- 2. a mixture that does not have a uniform appearance since the combined substances are unevenly distributed
- 6. the force of gravity acting on the matter in an object
- 8. the measurement of the amount of matter in an object
- 10. the mass per unit volume of an object
- 11. Anything that has mass and occupies space
- 14. a pure substance that consists of atoms with the same atomic number
- 15. the space enclosed of occupied by an object
- 16. agas-like state of matter, formed at very high temperatures, that consists of high-energy ions and free elections