Instead of buying alka seltzer I decided to make it instead. To make alka seltzer, I grinded citric acid and baking soda together to make the mixture. I made sure there were no clumps by grinding them together until it was a ultrafine powder. In order for the mixture to stick, I had to make a hard pack. With my teacher Andrew's help we packed it into a tube and pushed it down until it formed togeter
Instead of buying alka seltzer I decided to make it instead. To make alka seltzer, I grinded citric acid and baking soda together to make the mixture. I made sure there were no clumps by grinding them together until it was a ultrafine powder. In order for the mixture to stick, I had to make a hard pack. With my teacher Andrew's help we packed it into a tube and pushed it down until it formed togeter
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Liquid-Liquid = Gasoline-homogeneous Solid-Solid = Metal alloys-homogeneous The second part of my independent project was easier than the first. Instead of using tissue paper we used a plastic bag and balsa wood instead of straws. Balsa wood is lighter than straws and stronger than straws. To create the bottom piece of the lantern we taped the balsa wood together an melted the candles onto the frame. By melting the candles with its wax it made it a lot lighter than tying the candles onto the frame. I was really pleased with the final product, compared to the first lantern it was way lighter and it was also stronger. The tissue paper did not burn so the flight time was much longer. We added more candles than last time and that help the bag fill with hot air a lot faster. This project helped prove that hot air rises. Lighting and Flying the Final Product
"At last I see the light..." Rapunzel A week or so ago I was spending time with my little sisters, through out the day we watched Disney movies and we came across the movie Tangled. It's Disney's version of Rapunzel. There is a scene in the movie where they make floating lanterns and fly them in the sky in memorial of the lost princess, Rapunzel. This gave me the idea of building a lantern myself. For the lantern I bought tissue paper and straws. I had to cut the shape of the lantern out of the tissue paper and glue the pieces together. In order for the lantern to fly it needs to generate heat using candles. To hold up the candles I built a frame made out of straws, the straws are light weight and are inexpensive. I covered the straws in tin foil so they won't melt and tied the candles onto the tin foil with fishing wire. The hardest part for me was realizing that this lantern that I worked really hard on could potentially not work. Testing the lantern would be easy. I was scared of failure and the fact that I would be testing it in front of the whole class added another level to my anxiety. Aside from the anxiety I was mostly excited to be flying it. When we lit the lantern it didn't fly, I didn't worry that much though because it was still a fun experience and everyone was impressed with the work I had done. |
AuthorMy name is Alana and I am a sophomore at High Tech High. Here i will post weekly updates from my chemistry class. Archives
May 2015
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