1. Chapter 16.3
States of Matter

2. Atoms and Molecules

3. Molecule
smallest possible particle of a compound that retains the property of a compound

4. smallest possible particle of an element
Atom
smallest possible particle of an element

5. 1 drop of water is made up of more than
Water is a compound. One molecule of water is made of 2 elements of hydrogen and 1 element of oxygen.
1 drop of water is made up of more than
3,000,000,000,000,000,000,000 molecules

7. Molecules are always in motion.
At higher temperatures they move faster than at lower temperatures.
The rate of the molecules determines the state of matter.

9. Measures the average energy of a certain amount of molecules.
Temperature
Measures the average energy of a certain amount of molecules.

11. temperature at which a substance changes from a solid to a liquid.
Melting point
temperature at which a substance changes from a solid to a liquid.

12. temperature at which a substance changes from a liquid to a gas.
Boiling point
temperature at which a substance changes from a liquid to a gas.

13. transformation from a liquid to a gas
Evaporation
transformation from a liquid to a gas
a cooling process

14. transformation from a gas to a liquid
Condensation
transformation from a gas to a liquid

16. transformation directly from a solid to a gas.
Sublimation
transformation directly from a solid to a gas.

18. States of matter
Solid, Liquid, Gas

19. Characteristics of the states of matter

20. Solid Molecules vibrate but cannot change position
retains its shape and size

21. Liquid molecules move over and around each other
has definite volume but no shape

22. Gas molecules move around freely and separate from one another
has no definite shape and no definite volume

23. What is the only difference in the states of matter
the movement of molecules

24. Fourth state of matter

25. most common state of matter in the universe
Plasma
most common state of matter in the universe
matter is heated to such a high temperature that some of the atoms actually begin to break apart.

27. neon and fluorescent lights
Examples of plasma:
core of the sun
neon and fluorescent lights
lightning