Do microorganisms grow better in the light or the dark?
Sample hypothesis: If I put food in the dark then it will not grow microorganisms as fast as in the light. 4. Students should describe their materials needed and their procedure. Example: I need two dishes with the same food and a dark and light place. I will put the same amount of food in each dish, cover it, and place one in the light and one in the dark. 5. Students should identify their control. Example: My control is the dish in the light. 6. Allow several days for students to make observations. Bags should not be opened. 7. Students should analyze the data. Questions may be asked. 8. A conclusion should be stated in a way to answer the question posed and decide if their hypothesis was correct or not.
