1. Creating a hypothesis

2. What effect does high temperature have on radish germination?
the temperature of the soil is increased
IF …….
Then…….
Fewer radishes will germinate.

3. What effect does studying with music have on student test scores?
students increase the volume of music while studying
IF …….
Then…….
Their test scores will decrease

4. What effect does food color have on the amount of food fish eat?
the contrast of the food against the environment is increased
IF …….
Then…….
More fish will eat it