Unit 6 Pure Substances, Mixtures, Acids, Bases, Change in matter

Identify a turkey and cheese sandwich

• Pure Substance

• Mixture

The following is a change of matter:  A chocolate bar melting.  Choose the best option

• Physical Change

• Chemical Change

The pH Scale ranges from:

• 0-14

• 0-15

• 1-14

• 1-15

The following is a change of matter:  Baking brownies.  Choose the best option

• Physical

• Chemical

What are some ways that you know a chemical change has happened?

• Color change

• Gas give off

• There is no way to know.

Identify Salt

• Mixture

• Pure Substance

A Cell Phone

• Pure Substance

• Mixture

Sugar (C12H22O11)

• Element

• Compound

Carbon (C)

• Element

• Compound

A change that affects one or more physical properties of matter

• Chemical Change

• Pure Substance

• Physical Change

• Mixture