7.1.3

Match

Prerequisite Vocab Match

• the smallest unit of a chemical element

• a process that changes a substance into a new substance

• 
  a change in matter that does not affect its chemical composition

• a characteristic of a substance

• a substance with a fixed composition

atom

chemical change

physical change

property

chemical

• atom

• chemical change

• physical change

• property

• chemical

Multiple Select

Which of the following are examples of a physical change?

• mixing salt and water

• boiling water

• melting ice

• burning wood

Categorize

Options (4)

lava hardening

condensation

baking cookies

photosynthesis

Organize these options into the right categories

Physical Change

Chemical Change

Multiple Choice

There are several ways to tell that a chemical change has occurred. One clue is the production of gas. Which of the following tells you that a reaction produced gas?

• The color of the substance changes.

• Bubbles are produced.

• The new substance is warmer than the old substance.

• A smell is produced.

Draw

Reflection