Physical and chemical changes

Which of the following is an example of physical change?

• Mixing baking soda and vinegar together, and this causes bubbles and foam.

• A glass cup falls from the counter and shatters on the ground.

• Lighting a piece of paper on fire and the paper burns up and leaves ashes.

• Baking a birthday cake for your mother.

Which of the following is an example of chemical change?

• Filling up a balloon with hot air.

• Taking a glass of water and freezing it by placing it in the freezer.

• A plant collecting sunlight and turning it into food.

• Your dog ripping up your homework.

Which change can be easily be reversed?

• Chemical Change

• Physical Change

• Both a physical and chemical change

• Neither a physical or chemical change

When a new substance is formed with properties that are different from the original substance, it is called a

• Chemical change

• Physical change

• Freezing

• Boiling

What makes it possible to separate a mixture?

• ages of the substances

• values of the substances

• how quickly the substances mixed together

• the fact that no chemical changes have occurred

Which of the following statements would indicate that a chemical reaction has occurred? You may choose MORE than one:

• The substance was sliced into smaller pieces.

• There was a color change.

• An odor was given off.

• A new substance was created.

Select the picture showing a PHYSICAL change.

• 
• 

Select the picture showing a CHEMICAL change.

• 
• 

Is frying an egg a physical change or a chemical change?

• Physical change

• Chemical change

I am going to do really well on my test on Wednesday.

• Yes

• No