1. Presented By: Jeena Williams and Shavonte Harris

2. Solids – a solid has a definite shape and a volume. Liquid- has a definite volume but no shape of it’s own. Gas- a state of matter with no definite shape or volume

3. solids here are two types of solids: ~crystalline solids-solids that are made up solids ~amorphous-a solids made up of particles that are not arranged in a pattern

4. The particles in a liquids are: ~fluid- “s substance that flows” Properties of a liquid: surface tension- is the result of an inward pull. viscosity- a resistance to flowing

5. A characteristics of gas is: As they move, gas particles spread apart, filling all the space available. Thus, a gas has neither definite shape nor definite

6. Melting-the change in state from a solid to a liquid. Freezing-the change of state from liquid to solid. Boiling-another kind of vaporization.

7. When a solid change to a liquid it is melting, for example when an ice cream which is a solid melts.

8. When a solid changes to a liquid it is freezing, for example when water turns into ice.

9. When a liquid changes to a gas, it is also called vaporization. For example, mirror fog up in the bathroom

10. Pressure- The force exerted on the surface divided by the total area over which the force is exerted. Boyle’s Law- This relationship between the pressure and the volume of a gas. Charles’s Law- This principle

11. How do you measure gases? Well the answer is it’s when working with a gas, it is helpful to know its volume, temperature, and pressure.

12. Boyle’s Law- is when the pressure and volume is measured for increasing and decreasing volume and pressure.

13. Increasing temperature raised temperature is when temperature of a gas at constant volume is increased, the pressure of the gas increases.

14. Charles’s law- was found when the temperature of a gas in increased at constant pressure, it’s volume increases. When the temperature of a gas is decreased at constant pressure volume decreases.

15. Graph - a diagram that tells how two variables, or factors that change, are related.

16. Directly proportional- when a graph of two variables is straight line passing through, the variables. When a graph of two variables are said to vary inversely with one another.