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