Experiment 1: On his birthday his wife gave him a puppy, so he set out to make a better dog food. Pretty soon he came up with a mixture of special vitamins he was proud of, ahnd he began feeding it to his puppy.
After a year Pierre was very pleased with the way the puppy had grown, and he showed his friends pictures of the dog.
"That's nothing," one friend
said. "What did the dog look like before you started giving it the special food?"
So Pierre produced pictures of the dog when it was a tiny puppy. By comparing the pictures, you could see that the puppy had grown.
"That's still nothing," the friend countered. "All puppies grow."


Experiment 1
1. What is the independent variable?
2. What is the dependent variable?
3. How many trials did Pierre perform?
4. Did Pierre collect qualitative or quantitative data?
5. What is the problem with this experiment?

PLEASE HELLP