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**SOLAR COOKER**

**SOLAR COOKER**. **MATERIAL USED**. We use a firm to make the shape of the solar cooker, it can reduce the heat loss by conduction, convection and radiation. **MATERIAL USED**. We use a black colour paper to surround the solar cooker, it can absorb heat quickly!. **MATERIAL USED**.

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**SOLAR COOKER**

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  1. **SOLAR COOKER**

  2. **MATERIAL USED** We use a firm to make the shape of the solar cooker, it can reduce the heat loss by conduction, convection and radiation.

  3. **MATERIAL USED** We use a black colour paper to surround the solar cooker, it can absorb heat quickly!

  4. **MATERIAL USED** We put the aluminum foil inside the solar cooker, because the silver surface of the aluminum foil can reflect the heat inside the solar cooker.

  5. **MATERIAL USED** We use the plastic card to prevent the heat loss to the surround, because the plastic can keep the heat!

  6. **MATERIAL USED** To hold the water, make by aluminum.

  7. ** APPLICATION OF PHYSICS PRINCIPLE** ．Reflection ．Refraction ．GreenHouse Effect ．Conduction ．Convection ．Radiation

  8. **Data presentation**

  9. **Conclusion and discussion** The solar cooker can absorb the sun light to level up the temperature. And the heat can reflect in the solar cooker by the aluminum foil. In the GreenHouse effect, make we know that air is a good insulator. Unfortunately my group is not very successful at this experiment, it’s because our solar cooker is designed not very well, so we can not do the experiment successful. But we have got the experience at the experiment.

  10. **Members** ．Fong Yee Man 4C (6) ．Law Tik Yan 4C (8) ．Leung Tze Yan 4C (10) ．Li Hoi Yi 4C (11) ．Lo Hoi Ying 4C (14)

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