Unit 1 Review

Physical or chemical change?
cutting a piece of paper in half

• Physical
• Chemical

Physical or chemical change?
sugar is dissolved into hot tea

• Physical
• Chemical

Physical or chemical property?
density

• Physical
• Chemical

Over time, pure silver that is exposed to air turns a strange greyish brown color. This is an example of a ________________ change. 

• Physical
• Chemical

A change in which the form or shape of a substance changes but the chemical makeup of the substance remains the same.

• chemical change
• reaction
• physical change
• solution

Density

• Physical Property
• Chemical Property

Blue Color

• Physical Property
• Chemical Property

Flammability (burns)

• Physical Property
• Chemical Property

Solubility (dissolves)

• Physical Proeprty
• Chemical Property

Reacts with acid

• Physical Property
• Chemical Property