Unit 13: Lesson 3

A beaker of water is placed on a hot plate. The picture on the left shows the beaker when bubbles first start forming in the water. The picture on the right shows the beaker 5 minutes later.

What happened during the 5 minutes?

**Picture is the same in each answer choice

• 
• 
• 
• 

How does cutting a whole pumpkin pie into eight slices affect its mass?

• Cutting the pie increases the mass

• Cutting the pie decreases the mass

• Cutting the pie does not change its mass

• Cutting the pie makes its mass equal to its volume.

Students in a class made a list of activities that involve a chemical change. Which of these changes should be included on the list?

• ringing a bell

• making ice cubes

• picking up rocks

• making pancakes

The table lists some examples of chemical changes and physical changes. Which example is in the wrong column?

• 
• 
• 
• 

Which represents a PHYSICAL change?

• 
• 
• 
•