Lesson 4: How can we test our ideas about what plants need to grow?

Analyze and Interpret Data 

After discussing whether the test was a fair test, we analyzed the data from results. Most students determined that plants need sunlight, water, and air; however, they were unsure about the soil. During the soil tests, two variables were removed from the control instead of one.  We wanted to research whether plants get the matter they need to grow from soil as well.