LESSON 7 Make-up Lab

Just A Phase

Use these internet cites to help you answer the questions below.

http://www.chem4kids.com/files/matter_changes.html

1. Explain the steps in a phase change.

2. Explain why these steps occur in a phase change.

3. Scientifically speaking, what happens to ice when it melts?

4. How is temperature measured?

5. Create a graph on the back of this paper that shows an increase in temperature from – 6 degrees Celsius to a 94 degrees Celsius, increasing in 3 degree every 30 seconds over a 15 minute period. The last three minutes the temperature was a constant 94 degrees Celsius.

6. Why was the temperature constant at 94 degrees Celsius the last three minutes?