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The Sun

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The Sun The Sun The Sun is our closest star. It is a member of the Milky Way galaxy. The Sun is a medium sized star. It is believed to be over 4 billion years old. – PowerPoint PPT presentation

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Title: The Sun


1
The Sun
2
The Sun
  • The Sun is our closest star. It is a member of
    the Milky Way galaxy. The Sun is a medium sized
    star. It is believed to be over 4 billion years
    old.
  • The center, or core, of the Sun is very hot. A
    process called "nuclear fusion" takes place
    there. Nuclear fusion produces a lot of energy.
    This energy is called solar energy.

3
Solar Energy
  • Solar energy is the suns rays that are radiated
    to earth. Radiate means to send out in rays or
    waves.
  • Solar energy can be converted into other forms of
    energy on Earth, such as heat and electricity.

4
The Sun
  • The Sun is a huge, glowing ball at the center of
    our solar system. It is a star because it creates
    its own light.
  • The sun provides light, heat, and other energy to
    Earth that is needed for life to exist.
  • The sun is made up entirely of gas.
  • Eight planets and their moons, tens of thousands
    of asteroids, and trillions of comets revolve
    around the sun.

5
Solar Flares
  • The Sun also produces big explosions of energy
    called solar flares. These flares shoot fast
    moving particles off the Sun's surface. These
    particles can hit the Earth's atmosphere and
    cause a glow called an aurora.

6
Solar Flares
7
Sun Spots
  • Sun spots are areas of the sun that appear
    darker.
  • At these spots there is intense magnetic activity
    and causes the temperature to be much lower.

8
Sun Spots
9
The Sun helping Earth
  • The sun is used by plants when they make their
    own food in a process called photosynthesis.
  • Plants produce oxygen which all life needs to
    live.

10
The Sun helping Earth
  • The sun powers the water cycle. Its energy
    causes evaporation to occur.

11
  • The sun is very important to us. Remember that
    the sun provides us with light and heat. It also
    powers the water cycle and helps plants make
    their food. The sun is the biggest object in our
    solar system and therefore has the most
    gravitational pull. The suns gravity is the
    reason all other objects revolve around it.

12
Questions
13
Why is the sun so important to our solar system?
14
It provides energy for heat and electricity.It
powers the water cycle.It helps in
photosynthesis.
15
What is the sun?
16
The sun is a star which is made of gas
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