Vocabulary
Chemical Change Examples
Chemical Change
100
How many chemical changes are there?

Five

100

Heating up a campfire

Change in thermal energy

100

What chemical change happens whenever you see bubbles and smell an odor after mixing two substances

Formation of a Gas

200

What is the word for a solid forming in a liquid?

Precipitate

200

Pouring a liquid into a cup and it turns into a solid

Production of a precipitate

200

What chemical change happens whenever we notice the temperature drop in a substance

Change In Thermal Energy

300
Type of change where a new substance is created.
What is a CHEMICAL CHANGE?
300

You put an antacid tablet into a water bottle and you start to see bubbles

Production of a gas

300

You mix together two substances, and one starts to form into a cotton candy like solid in the other substance. What chemical change is this?

Production of a Precipitate

400
A type of change where the substance stays the same, but size and shape may change.
What is a PHYSICAL CHANGE?
400

You do the iodine time clock experiment and see the water color change from clear to black in almost an instant

Color change

400

You put together two substances and they are both clear. Once they mix together, the substances turn into a bright blue glowing color. What chemical change is this?

Color Change - Chemical
500

Whenever you cook foods, does a chemical change occur? (EX: baking a cake, cooking eggs, cooking steak)

Yes, if you cannot separate the food back into its original contents, a chemical change has occured.

500

What are the three chemical changes in a campfire?

Production of gas, color change and change of thermal energy

500

Are chemical changes permanent? What about physical changes? 

Chemical changes are permanent, Physical changes are not.