heat energy

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Home : 2002 : January : 9

heat energy
By kat

I did a unit in the fall on energy and we did an experiment outside. Ahead of time I painted 2 two liter bottles--one white and one black. We placed a balloon over the neck of each one. I asked them to hypothosize which
balloon would fill with more air. We recorded these results on a graph. We observed whether there was any difference with the amount of air in the balloon while it was inside. Then we put them both outside and recorded the appearance and the time. We checked them two hours later and again recorded the results. We waited another couple of hours and followed the same procedure. Then

I gave them a sheet asking different questions about heat energy. (ex: would you rather have a dark or light colored car in the summer?) We also recorded any problems we encountered to make the experiment work better. The only one they came up with was to choose a non- windy day because the bottles kept blowing over. Someone suggested putting sand in the bottom and someone else said it may alter the results a bit. I hope this helps you a bit. Oh another teacher did something with a light over different plastic buckets to see which would be warmer underneath. Good luck!