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