Superman flies faster than a speeding bullet! Calculate his average speed for each scenario below

Superman flies faster than a speeding bullet! Calculate his average speed for each scenario below.

1. 
   Superman flew 600 miles in 3 hours. What was his average speed?
   
2. 
   It took Superman 2 hours to travel 380 miles. What was his average speed?
   
3. 
   Superman traveled 900 miles in 3 hours. What was his average speed?
   
4. 
   Superman flew 250 miles in 5 hours. What was his record-breaking speed?
   
5. 
   The fastest Superman is able to travel is 2200 miles per hour. Based on this speed, how far could he travel in:
   

1. 
   2 hours? b. 3 hours? c. 5 hours?
   

6. 
   Use the graph below. When did Superman fly the fastest? Explain.
   

Spiderman was bit by a spider, which created a chemical change in his body. This chemical change created many physical changes in his body! Determine if the following are examples of chemical or physical changes, and tell what evidence proves that type of change.