Lee thinks that fish that eat food exposed to
microwaves will become smarter and would be able to
swim through a maze faster. He decides to perform an
experiment by placing fish food in a microwave for 20
seconds. He has the fish swim through a maze and
records the time it takes for each one to make it to the
end. He feeds the special food to 10 fish and gives
regular food to 10 others. After 1 week, he has the fish
swim through the maze again and records the times
for each.
1. What was Lee’s hypothesis?
2. Which fish are in the control group?
3. What is the independent variable?
4. What is the dependent variable?
5. Look at the results in the charts. What should Lee’s conclusion be?
