2. What do you see without light?

3.  In the absence of light, how much can you see?

4.  If you are in a totally dark room (with no light at all) you will see nothing.

6. We changed the apple’s exposure to light.

7.  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

8.  Our hypothesis was correct.  You can see nothing without light  To see even a shadow or an outline, we need some light.

9.  Uncovering Student Ideas in Science 25 Assessment Probes by Keeley, Eberle and Farrin  Seamless Assessment in Science by Abell and Volkmann