2.  Science Objective  We observe and describe the properties of matter.

3. SolidLiquidGas

4.  Set Purpose › We are going to read about matter. › We are going to find out what matter is and what forms it takes.

5.  Quick SUMMARY  › Matter is anything that takes up space and has mass. › A property is something about matter that can be observed with your senses. › Properties help us identify matter by helping us describe it.

6.  Questions › What are some properties of matter you can observe? › How do you know helium inside a balloon is matter? › What are two other objects that have some properties similar to the properties of a tennis ball?

7.  Questions › What are the particles of a solid like? › How can you tell the difference between a gas and a liquid? › You know matter takes up space. If you pour orange juice into an empty glass, what happens to the air inside the glass? How do you know?