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Tuesday, April 18, 2006

Solar Cooker Project

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Question and Hpothesis

My question was how drastically extra parts change the temperature in the cooker.
My hypothesis was that the extra part would increase the temperatue by a large degree.

Procedure

1. Reasearch solar energy on the internet.
2. Build your solar collector.
3. Put your solar collector in the shade for five minutes and record the temperature.
4. Quickly set your collector in the sun.
5. Record the themperature every two minutes for ten minutes.
6. Make an attachment, such as another side of cardboard with foil on it, that you didn't have before.
8. Put your solar cooker in the shade again for five minutes and record the temp.
9. Set in sunlight for ten min. and record temp. every two min.
10. Find the difference between the base temp. and the tempuarture at ten minutes for both tests.
11. Compare the two differences and see which is higher.

Results

As seen on the graph, the test with the etxra part has a better tempurature increase.

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Conclusions

My hypothesis was correct.  The extra part increased the temperature of the solar cooker dramatically.  With the extra the temp. was higher than w/o the extra by four minutes.  I wonder how much the temp. in the cooker would increase if more parts were added.

Discussion

I think if solar energy was used instead of coal the pollution rate would go down.  Also, there wouldn't be very much smog and no acid rain.  Greenhouse gases woould stop growing so it wouldn't get hotter.  I conducted two tests because so i could test variables in the experiment and so i could answer a question.

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Posted by: adamb
Thursday, January 5, 2006




                  Plants make energy in a process called photosynthesis.  In this process the plant absorbs water(H2o),sunlight, and carbon dioxide(co2). In the leaf organelles called chloroplasts use these matierals to make gluclose and oxygen(O2).  Gluclose is a sugar that the plant uses to for energy. Oxygen is the air we need to live.  In a way animals and plants can't live without photosyntesis.

For more details visit:

http://en.wikipedia.org/wiki/Photosynthesis

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Posted by: adamb
Thursday, September 15, 2005

What is my country?

1. It is north of the Equator. 2. It is west of the Prime Meridian. 3. It is located on an isthumus. 4. It is west of the Atlantic Ocean. 5. It is southeast of the west part of the United States. 6. My country's capital is 80 degrees west, and 10 degrees north.

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Posted by: adamb
Modified on September 16, 2005 at 2:02 PM
Monday, August 29, 2005

Tundra



A treeless plain espeacialy of artic regions.

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Posted by: adamb
Modified on August 30, 2005 at 1:51 AM

A sheltered place along a shoreline where ships can dock safely

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Posted by: adamb
Modified on August 30, 2005 at 1:51 AM