Is light required for photosynthesis

Question 1

SAM & CID

Answer 1

Same / Controlled - These variables remain constant to ensure a fair test
Alter / Independent - The one variable that is changed during the investigation
Measure / Dependent - The variable you measure and record

Question 2

Explain the method to see if light is required for photosynthesis

Answer 2

destarch both plants
Put one plant under a bright light and leave the other in the dark (cupboard or inside plastic bag) for a few hours
3. Take one leaf from each plant and test it for starch