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