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 definite, 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 or 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 block of all matter; consists of protons, electrons, and neutrons
- 19. A physical combination of two or more substances in a changeable ratio
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 measure of the amount of matter in an object
- 10. The mass per unit volume of an object
- 11. Anything that has mass occupies space
- 14. A pure substance that consist of atoms with the same atomic number
- 15. The space enclosed or occupied by an object
- 16. A gas-like state of matter, formed at very high temperatures, that consists of high-energy ions and free electrons