How do science concepts apply to your world? Here are some questions you'll be able to answer after you read this chapter.

• How do road workers keep ice from building up on streets and highways?
• Why don't oil and water mix?
• What foods contain acids?
• Why do some people consume sports drinks?
• How are nutrients delivered to your body's cells?

How Do Shaking and Heating Affect a Carbonated Beverage?

Procedure

1. Remove the cap from a plastic bottle of carbonated beverage (a solution of carbon dioxide in water). Observe what happens.
2. Fit a balloon tightly over the top of the bottle. Holding the bottle over a sink, shake it several times from side to side. Observe any changes in the balloon and the liquid.
3. Place the bottle in a bucket of hot water. Observe any further changes in the balloon.

Think About It

1. Observing   What happened when you removed the cap from the bottle?
2. Inferring   What caused the balloon to expand?
3. Drawing Conclusions   How did shaking affect the rate of the change in the beverage?
4. Applying Concepts   How would storing a carbonated beverage in a refrigerator affect what happens when the cap is removed?