1. States of Matter Review This powerpoint created by Susan Jacobs, NWISD

2. What is matter? Everything in the universe that has mass and takes up space is classified as MATTER. Mass is the amount of matter something contains. For example, a large heavy object such as and elephant or a car has a LOT OF MASS! A small, light object such as a leaf or a straw has much less mass. Even though an elephant, car, leaf and a straw are very different, each is an example of matter.

3. What gives matter its properties? All matter is made up of small bits called particles. The particles are so small that they can be seen only with the strongest microscopes. These tiny particles are always moving quickly. The arrangements of particles give matter its properties or shape.

4. How are particles arranged in a solid? A solid is matter that has a definite shape and takes up a definite amount of space. The particles in a solid are close together, like neat and even stacks of tiny balls. Each particle moves back and forth around one point. This arrangement of particles gives a solid its definite shape.

5. Why does a liquid have the same shape as its container? A liquid is matter that takes the shape of its container and takes up a definite amount of space. When matter is a liquid, its particles slip and slide around each other. The particles don’t keep the same neighbors as particles in a solid do. They move from place to place but they still stay close to each other. As particles in a liquid move, they bump into the walls of their container. The solid walls don’t change shape and the particles can’t move past the walls so the particles take the shape of the container.

6. How does heating matter change its state? A gas is matter that has no definite shape and takes up no definite amount of space. Like particles in liquids, the particles in gases are not arranged in any pattern. Particles in gases are moving much faster than particles in a liquid or a solid do. Heating matter makes the particles move faster. As the heat is increased, the liquid reaches the boiling point and changes into a gas!

7. To sum it up… Matter takes up space. Matter is made up of particles. Particles in a solid stay close together and move back and forth around one point. Particles in liquid matter stay close together but move past each other. Particles in a gas move quickly and are spread far apart.

8. Lets take a quiz! Use your CPS clickers to input your answers or answer on notebook paper. 1.What are the 3 states of matter? a.Solid, liquid, ice b.Solid, liquid, gas c.Solid, block, car d.Liquid, gas, ice cream

9. 2. Which state of matter keeps its shape? a.Solid b.Liquid c.Gas

10. 3. Which states of matter take the shapes of their containers? a.solid, liquid b.Liquid, gas c.Solid, gas

11. 4. Which sentence describes a liquid? a.Particles slide past each other. b.Particles stay close together. c.Particles are arranged in a pattern.

12. 5.What causes the particles in matter to move faster? a.Cold energy b.Heat energy c.Water

13. 6.(True or False) Particles in a gas stay close together. True False

14. 7. (True or False) Particles in a liquid keep the same neighbors and take up a definite amount of space. True False

15. 8. (True or False) Particles in a solid do not move. True False

16. 9.Everything in the universe that has mass and takes up space is classified as______ a.Mass b.Matter c.Liquid d.Solid

17. 10.__________is the amount of matter something contains. a.Matter b.Mass c.energy