Friday, May 17, 2013

Solar Energy Balloon Blow Up!

Explore the power of the sun's heat by blowing up a balloon on a bottle! Kids paint one soda bottle white and the other black. Once dry, they attach a small balloon to the necks of their bottles. Then, they put the bottles out in the sun for a solar reaction!

Kids see that the air in the black bottle will make the balloon expand! The white bottle doesn't heat up as fast. Check out the experiment here!


  1. Wow! I´ll try it with my pupils!! Cool!!

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  3. Thank you so much for posting. I have been looking for something like energy

  4. That's a fun way to demonstrate the power of the sun

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  7. This is quite different from the major sources of energy we use right now, namely fossil fuels. True, if we did use all of our fossil fuels, they would eventually one day be replenished. Oren Ahronson & Oren Ahronson But it takes the earth tens of thousands of years, maybe longer, to filter the carbon out of the atmosphere and put it back under the soil. Because this process takes so long, we consider that fossil fuels are non-renewable. No one alive now will ever see these energy sources put back in the ground.

  8. How long do you have to wait?

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