1. Do Now: Compare/contrast physical and chemical changes in your own words.

2. Properties of matter. -Matter has mass and takes up space. -Mass: the measure of how much “stuff” is in something. How much matter is present. -Matter can exist in multiple states while retaining its chemical properties.

3. States of Matter Solid: Rigid, incompressible. Solids have a fixed volume and do not change shape without large forces placed upon them. Solids will withstand large forces and retain shape. How can we use solids to our advantage?

4. Building materials are solid. They must retain their shape while having mild flexibility. Why?

5. Liquids Liquid: Incompressible fluid. Liquids generally maintain the same volume while retaining the ability to change shape to it’s container. What are some applications for the physical properties of liquids in our lives?

6. Liquids will fill a glass from the bottom to the top. Why are the liquids in this glass layered?

7. Gases Both Fluid and compressible. Gases will not only adapt to the container that they are in, but will also expand to fill a closed container. What is a mechanical advantage of air or another gas?

8. Air makes a good cushion for impact because it compresses. Where else have you seen this?

9. Mixtures A material system made up of two or more different substances which are mixed but are not combined chemically. Mixtures can be separated without changing into another chemical.

10. Mixture or pure substance? Salad Olive oil Sea water Black coffee Pennies

11. Solutions are mixtures too. If you add sugar to water and stir it up, do you still taste the sugar. Sure! It’s still sugar. It’s just smaller.

12. Elements and Compounds Elements: A pure substance consisting of a single kind of atom. Elements possess their qualities because they are all made up of the same kinds of atoms, each of which has the same number of protons.

13. Compounds Materials that are made up of two or more kinds of elements. Compounds are chemically bonded together. They often have physical and chemical properties that are different from their component elements.

14. Element or Compound CopperBrass WaterTin GlassCarbon SiliconLead GoldPlastic

15. Identify the elements.