1. Mary had read that there are alternatives to pesticides for killing aphides that infest roses. She read that some soaps are good at repelling the pest. She had five rose
plants. She tried four different types of soap on the plants and left one
plant alone. She then recorded the number of aphides remaining on each rose plant.
1. What is the problem?
2. Write a testable hypothesis in the "If... , then..." format. Be
sure it is written in a complete sentence.
3. What would the independent variable be?
What would the dependent variable be?
5. What would the controls be?