7.1.3

Match

Match the following: A process that changes a substance into a new substance is called a ___.

• The smallest unit of matter

• A process that changes a substance into a new substance

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

• a substance made of two or more elements bond together

• a substance with a fixed position.

atom

chemical change

Physical Change

Compound

Chemical

• atom

• chemical change

• Physical Change

• Compound

• Chemical

Multiple Select

Which of the following are examples of a physical change?

• Boiling water

• Mixing salt & water

• Burning wood

• Melting ice

Multiple Choice

Which of the following is an example of a chemical change?

• Melting ice

• Boiling water

• Burning wood

• Mixing salt & water

Open Ended

Explain the difference between a physical change and a chemical change using examples from your daily life.

Categorize

Options (4)

Condensation

Lava hardening

Baking cookies

Photosynthesis

From the following, select all that are examples of chemical changes: Lava hardening, Condensation, Baking cookies, Photosynthesis.

Physical Changes

Chemical Changes

Multiple Select

Which of the following are signs of a chemical change?

• Gas production

• Color change

• Melting

• Precipitate formation

Multiple Choice

What is one sign that a chemical reaction has occurred?

• Change in color

• Change in shape

• Change in size

• Change in temperature