Solar Energy: Science Hurumanu

Solar Energy

Catching the sun movie

Materials:

1.  Cups (x4)
2.  Water
3.  Tin Foil
4.  2 of sheets paper
5.  1 sheet of black paper
6.  Thermometre
7.  1 Big cup
8.  1 Heat Lamp

Steps

1.   The first step is to gather all your cups.
2.   Put water on each of the cups except big cup, fill the smaller cups about the right amount
3.   Gather all your paper/tinfoil together and place them on a flat surface. (A Table) 
4.   Put 2 cups on each of the white paper, but one with the bigger cup on top of the smaller cup. To create a greenhouse effect.
5.   Place the remaining cups on the black paper and one on the tinfoil.
6.   Take the temperature of all the cups, which should be the same and record it 
7.   Turn your heat lamp on, it should almost reach every cup.  

Which surface conducts/attracts the most heat?

Time + temperature	Cup 1 White paper	Cup 2 White paper+ plastic.	Cup 3 Black paper	Cup 4 Tinfoil
0	12oC	12oC	12oC	12oC
40 minutes With heat lamp	15oC	16oC	26oC	25oC
15 minutes After, without the heat lamp	18oC	18oC	24oC	23oC
30 minutes After, without the heat  lamp	16oC	16oC	22oC	22oC

Findings:

In this experiment, we have found out that the black paper has absorbed more heat than the other cups. The normal cup with the white paper has the least amount of heat absorbed. The tinfoil wasn't too much apart from the black paper, and the white paper with plastic wasn't also too far apart from the white paper.

Conclusion:

Both the black paper and the tinfoil has absorbed the most heat, and both of the white paper has absorbed the least heat.