Science Experiment on Photosynthesis (1)

1. The experiment below was carried out by Ahmad to find out how the distance of a light source from a plant would affect its rate of photosynthesis.

a) What is a possible hypothesis for the experiment?

b) Identify the variable(s) that must be changed.

c) Identify 3 variable that must be kept the same.

d) Suggest two changes Ahmad must make to his experiment for it to be a fair test.

e) What must Ahmad observe so that he can make a conclusion to his experiment?

Fill in your responses here.