Krusty the clown was told that a certain itching powder, called Itch-Might is the newest thing on the market. It claims to last 50% longer than other itching powders. Krusty buys the new powder and compares it to his usually itching powder, Scratch-A-lot. then krusty designs an experiment. Group A is given the Itch-Might powder and Group B is given the Scratch-A-Lot powder. Group A reported itching for 25 minutes and group B reported itching for 35 minutes.

What was the independent and dependent variable?

1.The powder

2.The amount of people that scratched

3.Group A

4.Group B