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The Sun and Us

The Sun and Us. The Sun’s Energy. The Sun’s Energy. Energy leaves the sun in the form of heat and electromagnetic radiation Result from the fusion reactions in the sun. The Sun’s Energy. Fission – splitting of atoms (nuclear bombs)

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The Sun and Us

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  1. The Sun and Us The Sun’s Energy

  2. The Sun’s Energy • Energy leaves the sun in the form of heat and electromagnetic radiation • Result from the fusion reactions in the sun

  3. The Sun’s Energy • Fission – splitting of atoms (nuclear bombs) • Fusion – fusing of nuclei to form heavier elements (hydrogen to helium) • IMMENSE amts. of energy and neutrons released

  4. The Sun’s Energy

  5. Sun’s Energy • In form of Electromagnetic Energy Waves • Energy absorbed or radiated by particles • Include x-rays, gamma rays, visible light, etc • Lots of it may be harmful to life

  6. Sun’s Energy • Lots of harmful radiation absorbed or reflected by atmosphere • Earth’s magnetism also reflects radiation

  7. Solar Energy • Some radiation gets through • Visible light spectrum

  8. Sun’s Energy • Solar energy that reaches Earth’s surface is… • Turned into chemical energy by process called photosynthesis • Leads to our own energy

  9. Earth’s Energy • Solar energy that reaches Earth’s surface is… • Reflected/absorbed by land and water • Takes LOTS of energy to heat up water • Why do you think this is important?

  10. LAB TIME!!!!

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