Notebook page 31

Properties of Matter

Physical and Chemical Properties

• Physical Properties: • Characteristics you can observe that do not

change the identity of the substance. • Ex: Stretch, Melt, Boil

• Chemical Properties:• Characteristic that indicates if a substance

can undergo a chemical change.• Ex: Flammable, React to Light

Physical and Chemical Changes• Physical Change:• Change in size, shape or state of matter

without changing the identity of the matter.• Ex: Iron absorbs heat and changes from

solid to liquid (state of matter change) and glows red.

• Chemical Change:• Change of one substance to another.• Ex: Eggs decompose giving off hydrogen

sulfide H₂S

Physical and Chemical Properties and Changes

• The teacher will assign one of the following:

1. Physical Property2. Chemical Property3. Physical Change4. Chemical Change

• Write down your assigned words.• Come up with your own example in a sentence.• Share your example with the class.