Hurumanu: Solar Energy

Solar Energy

Catching the sun movie

Materials:

1.  4 Cups
2.  Water
3.  Tinfoil
4.  2 sheets of white paper
5.  1 sheet of black paper
6. Thermometer
7. 1 large cup
8. 1 Heat lamp

Steps

1.   Get al the materials first after you get them all the materials separate all the cups except and also put the large a cup on top of the cup with a white paper underneath
2.  Put the second cup near the other one and out a white paper underneath.
3.  Put the third cup near the others and put the black paper underneath it.
4.  Put the fourth cup near the others and put the tinfoil underneath it.
5.  Put the heat lamp that can heat all the cups and wait the following time.
6.  After you heat all the cups use the thermometer to each of them, and also you need to hold it for 5 minutes 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
30 minutes after, without heat lamp	16oC	16oC	22oC	22oC
15 minutes after without the heat lamp	18oC	18oC	24oC	23oC
40 minutes with heat lamp	15oC	16oC	26oC	25oC

Findings:

In this experiment, we have found that the first hottest cup with the black paper underneath is hotter than the others with 26oC. The second hottest cup with 25oC is tinfoil. The third hottest is white paper and white paper with a plastic cup has both 18oC.

Conclusion

I found that the cup with tinfoil underneath is hotter than the others. The coldest cup is all of them and the water comes from the sink.