What do you see without light?
In the absence of light, how much can you see?
If you are in a totally dark room (with no light at all) you will see nothing.
We changed the apple’s exposure to light.
Take red apple Turn off all lights Block any light entering room (or closet) with tape, paper, towels, etc. Enter room or closet with no windows Wait for eyes to adjust
Our hypothesis was correct. You can see nothing without light To see even a shadow or an outline, we need some light.
Uncovering Student Ideas in Science 25 Assessment Probes by Keeley, Eberle and Farrin Seamless Assessment in Science by Abell and Volkmann