https://padlet.com/voylgrac/pf07xijuvxv4 Can we make an ice penguin survive 20 minutes in an insolated home? en-us 2017-01-19 18:47:22 UTC 2024-11-16 17:20:18 UTC hello@padlet.com http://www.publicdomainpictures.net/pictures/140000/velka/penguin-1444834531iPB.jpg voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/148199810 About The Penguins:
Boulder Beach Penguins are slowly becoming endangered. Their home is being destroyed by global warming and we need to stop it. The Boulder Beach penguins live on the coast of South Africa, weigh 4-9 lbs, 20'', and have a black stripe curving across their chest. We are trying to design and build a shelter that will reduce heat transfer and keeps our ice cube penguin from melting.
The 3 Demos: We did 3 demos. One including trays, another including spoons and the last one including The Black Roofed House.
Trays: We used two different trays. One was metal and the other was plastic. We had to see which tray felt colder when they were both the same temperatures of 71.8. When I touched the plastic tray it felt hot, but once I touched the metal tray It felt like touching ice with my bare hands. The reason is: a metal tray is a better conductor than a plastic tray, while a plastic tray is a better insulator than a metal tray.
Spoons: Two different spoons were used while two students were passing around the spoons to the class. one of the spoons was metal and the other was plastic. The spoons both had baby ice penguins. The penguin on the metal spoon melted faster than the one on the plastic spoon. This was because of the heat from our hands transferred onto the metal spoons and made the ice melt faster.
The Black Roofed House: The black housed roof was a timed experiment. It was timed for about 30 seconds. We had two thermometers in the house and we stuck it into the roof and the bottom of the house. We also had a bright lamp onto the house to see the difference between the temperatures in 30 seconds. ]]> 2017-01-19 18:57:19 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/148199810 voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/148458683 We are testing different materials so that we can see what is the best insulator to save the penguins. The warmer the insulator.. the worse it is. The top three of our insulators were:
Mylar
Aluminum
Cotton

We will use the best insulators to make a house that will keep the house from transferring heat.]]> 2017-01-20 19:12:57 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/148458683 voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/149977070
Our house is made from Mylar, aluminum foil and tape. The floor is made of bubble wrap, and Mylar was used for the roof while the aluminum foil was used for the walls. We tested our prototype and, most of it was a failure. The roof was able to block out a little heat, but not a lot. The walls was a total fail. and the floor didn't help at all. Our penguins percentage loss was 50%. ]]> 2017-01-27 19:11:49 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/149977070 voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/151517600 In our home we made a few minor changes. We made the house bigger, and the roof made out of aluminum foil also. We thought the roof would absorb heat less. there was also a second layering of Mylar, but that only made it hotter. Our final houses percent loss was 19.5%. We had a better success, than the last one but we had to redo the penguin experiment with the final house because our first percent loss was 100%. Our home met the criteria and constraints, it stayed under the 100$ limit, and kept the penguin baby from melting.]]> 2017-02-03 17:56:09 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/151517600 voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/151519874 2017-02-03 18:04:02 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/151519874 voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/151520305 2017-02-03 18:05:35 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/151520305 voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/151520510 2017-02-03 18:06:13 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/151520510 voylgrac https://padlet.com/voylgrac/pf07xijuvxv4/wish/151520886 2017-02-03 18:07:17 UTC https://padlet.com/voylgrac/pf07xijuvxv4/wish/151520886