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Bell Ringer 9/24 Write down three things you know about the sun.

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Presentation on theme: "Bell Ringer 9/24 Write down three things you know about the sun."— Presentation transcript:

1 Bell Ringer 9/24 Write down three things you know about the sun.

2 Chapter 29 – Stellar Evolution
29.1 Notes

3 The Sun Largest object in solar system Diameter = 109 Earths across
Mass = 330,000x as massive as Earth 99% of mass in Solar System

4 Fusion Combination of 2 or more light-weight atomic nuclei into 1 heavier nuclei

5 Fission Splitting of 1 heavier nuclei into 2 or more light-weight nuclei

6 Sun Produces energy by fusing hydrogen atoms into helium atoms
Mass is lost and becomes energy given off by sun

7 Sun Move energy in variety of wavelengths in all directions
Tiny fraction comes to Earth

8 In-Class Assignment Constellation Crossword Puzzle

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