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In the second trial, we did improve due to the insulation of the cotton balls put into the penguin's home. Something that was challenging throughout the process of constructing and reconstructing the home was trying to find out what would work well to be under heat lamps for twenty minutes. The starting mass was 7.2 g and the final mass was 4.9 g. The percentage lost was 31.9%. If I could redesign this home again I would add more materials that kept the coolness of the igloo near the floor instead of rising to the ceiling.

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On our first trial, we were relatively close to the goal of less than 30%. On our first trial we had the percentage lost of 33%. The starting mass of the ice penguin was 7.8g and the final mass was 5.2g .

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In the trays demo, the metal tray acted as a conductor, and took the heat from my hand. The plastic tray performed as an insulator and had no affect on my hand. We made sure not to use metals while constructing our house so he wouldn't melt from the absorbed heat. The spoons demo showed a similar affect to the tray demo, expect the metal and plastic spoons had ice penguins on them to demonstrate the effects of metal and plastic on the ice penguin. The metal spoon took heat away from its possessor, the heat also melted the penguin. The plastic spoon demonstrated as an insulator and stayed the same as before. We didn't use metal at all for our home. The Mylar vs Black roof demo we found that the Mylar reflected heat while the black roof absorbed heat. We found the Mylar was beneficial to the making of the home, since it would reflect heat instead of attracting it. The Attic vs Floor demo demonstrated heat rises so the attic would be warmer compared to the temperature of the Attic. We then flipped the house upside down, causing the attic to be warmer and the first floor to be colder. We didn't build the penguin a two story home, so the heat had no where to rise. The coolness stayed at the first floor of the penguin's home.

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We decided to use mylar for the outside of the house because of how well it reflects radiation which is what we were looking for. We also used white foam for the floor of the penguin's home. We decided it would be best to add aluminum for the roof. We also used cotton balls to act as insulation inside of the penguins home as well.

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New changes we added to modify the design was the insulation inside of the penguin's home. For the insulation we used spread out cotton balls.

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The top three insulators that kept heat out the best were feathers, fiber glass, and white foam.

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Global warming is causing penguins in South Africa to overheat.When they go into water to cool off, birds are stealing their eggs. How can I design and build a shelter that reduces heat transfer and keeps my ice cube from melting?