Kuma Posted March 22, 2018 Report Share Posted March 22, 2018 Hey there! So I need some help... My Biology IA is investigating the effect of light wavelength (i.e. colour of the light) on the rate of photosynthesis through leaf disks. I'm doing this by putting filters (cellophane) over the light. However, I'm kind of confused as to what my control would be! Would it be the light simply without a filter (white light)? Or literally no light (so in the dark)? I feel like it would have to be without the filter because with no light the control would just be testing the effect of light on photosynthesis rather than coloured light! Please Help!! From, A very thankful IB student! Reply Link to post Share on other sites More sharing options...
yara560 Posted March 22, 2018 Report Share Posted March 22, 2018 I think without a filter would be perfectly fine, as you said. You might want to get a teacher's opinion though! Reply Link to post Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.