Scientific Method

Which color lights cause plants to grow more effectively?

If plants reflect green light, then they must absorb red light and grow faster under red light

What makes the pupil in the eye change size?

I will compare the volume of a glass of water at room temperature with a glass of frozen water

Container 1 - Water: 14.0 ml, ice: 14.8 ml  / Container 2 - Water: 20.0 ml, ice: 20.8 ml 

I will organize snail races on glass and concrete and compare how fast snails travel on each

The results showed green light was the least effective color for growing plants

I will test my partner's pupils by covering one eye and shining a light directly into the other

Snails move faster on glass than on concrete 

After consistent results, I found that the water increases in volume when it freezes.

Do snails crawl faster on concrete or glass?

Does the volume of water change when it freezes?

If snails move faster on smooth surfaces, then a snail will move faster on glass than concrete

If solids are more dense than liquids, then water will decrease in volume when it freezes. 

I will place 4 plants under green lights and 4 under red lights and compare their growth