First, let’s describe the experiment. What did we do? EXPERIMENT: LIGHTS OUT!

( 1 st) First: cut out pieces of cardboard ( 2 nd) Second: clip the pieces of cardboard on the leaves. ( 3 rd) Third: take out the pieces of cardboard from the leaves a week later to see the results.

What do you think happens to the covered leaves? Do you think the covered leaves will be different from the others?

What happens and why? Do the covered leaves receive sunlight? No, of course not.

the leaves can’t absorb sunlight, photosynthesis is not possible and leaves don’t get green And if…