1. Introduction to Matter (IC Chapter 1)

2. The total energy of the motion of all of the particles in an object. kinetic energy

3. The energy stored in the chemical bonds between atoms. Potential energy

4. Anything that had mass and takes up space. matter

5. A way of separating mixtures by pouring the mixture through a filter. filtration

6. The amount of space that matter occupies. mass

7. A change in matter that produces one or more new substances. chemical change

8. A way of separating mixtures(liquids)by heating one liquid to a boiling point, turning it into a gas, then cooling the gas back into a separate liquid. distillation

9. A characteristic of a substance that can be observed without changing it into another substance. physical property

10. A system of measurements based on units of 10. International System of Units

11. A force of attraction between two atoms. chemical bond

12. Always having a specific composition. pure

13. A group of two or more atoms held together by chemical bonds. compound

14. A single kind of matter that is pure. substance

15. A change in which energy is absorbed. endothermic change

16. Symbols that show the elements in a compound and the ratio of atoms. chemical formula

17. A change which alters the form or appearance of matter but does not turn any of the substances in the matter into a different substance. physical change

18. The process by which molecules at the surface of a liquid absorb enough energy to change to a gas. evaporation

19. The basic particle from which all elements are made. atom

20. A measure of the mass of a material in a given volume. density