400
Students planted bean seeds in the same kind of soil in separate cups. The
cups were put next to each other on a sunny windowsill. Cup 1 was given
10 mL of water every other day. Cup 2 was given no water. Which of these is the independent (manipulated) variable in the experiment?
A The type of soil
B The type of seed
C The amount of water
D The amount of sunlight
What is the amount of water