Tap Water vs. Rain Water
By: Adrianna Ballard
Is rain water or tap water better for germination?
If two of the same seeds are given the same amount of water over a series of 4 days, but seed A is given rain water and seed B is given tap water, then seed A will grow faster, and larger than seed B. Because I think that rain water is better for germination.
Control and Variables
Control Experiment: Type of water being changed
Independent Variable: Type of water given
Dependent Variable: Plant growth
As you can see from my data, my hypothesis was correct by saying that rain water helps plants grow more than tap water does. Seed A grew 2 cm more than Seed B did by day four.