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I think that the bubble wrap was a good idea for the floor. We could have improved on the walls and made it more insulated and we should've made the roof reflect. For some reason, our house did worse on the second trial with 39% loss. I would change the walls and the roof.

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We didn't want to change anything because it did so well but we did try to make the walls sturdier.

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Some successes in our design is we used bubble wrap as floor, white foam as the roof, and aluminum as the walls. The first time we tested we lost 27.7%, which meets the goal.

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We are using aluminum on the walls, bubble wrap on the floor, and white foam for the roof.

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We are using aluminum, like mylar, bubble wrap, and no black materials because it attracts heat.

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The three best insulators are white foam, mylar, aluminum.

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The penguins need saving because global warming is causing penguins to overheat, so they go into the water to cool off, and while doing so birds are stealing their eggs.
Design Challenge Question: How can I design and build a shelter that reduces heat transfer and keeps my ice cube penguin from melting?