The Sun, Orbits, and the Moon

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The Sun, Orbits, and the Moon

• Miss Camp
• 5th Grade
• Berkshire Elementary

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The Sun

• Hydrogen mostly makes up the Sun.
• Hydrogen and Helium are the elements that make up
  the Sun.
• Source of almost all energy on Earth.
• About the same size as most stars.
• Many times larger than Earth.
• Oldest and largest body in Solar System.

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The Suns Layers

• Core center of the Sun
• Radiation Zone heated by energy from Core
• Convection Zone Suns outer layer
• Photosphere Sphere of light this is the part
  of the Sun we see.
• Corona area of hot gases

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Solar Features

• Sunspots Areas that look dark because they are
  cooler.
• Solar Wind A fast-moving stream of particles.
• Solar Flares Brief bursts of energy

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Layers of the Sun
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Orbits

• Orbit the path one body in space takes as it
  revolves around another body.
• Earth orbits (revolves) the Sun, Moon orbits the
  Earth.
• Forces act on the planets to keep them in orbit.
• If the orbit was gone the planets would fly off
  in a straight line. (this is called inertia)

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Law of Universal Gravitation

• All objects in the universe are attracted to all
  other objects.
• This is only visible with objects of large
  masses, such as the planets and moons.
• Gravitational pull keeps planets in orbit along
  with interia.
• Gravitational pull (attraction) and inertia
  determines the path of a planet.

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