CBA

Question 1

Hypothesis

Answer 1

An increase in light will result in and increase in photosynthesis

Question 2

Variables

Answer 2

Independent: Concentration of light
Dependent: Rate of photosynthesis
Constant: Elodea, temperature, water, CO levels, chlorophyll, torch beaker, ²stopwatch, retort clamp, cardboard, stopwatch

Question 3

Comment on the data collected

Answer 3

Increase in light = increase in photosynthesis

Question 4

Way to improve

Answer 4

I could try no light