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The Sun

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The Sun The Star in the Center of our Solar System – PowerPoint PPT presentation

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Title: The Sun


1
The Sun The Star in the Center of our Solar System
2
The Sun The Sun is our nearest star. It is a
huge glowing ball of gas just like all other
stars. The Sun is made mostly of the gases
hydrogen and helium. The Sun is only a medium
sized star compared to other stars.
3
The other planets in our solar system circle
around, or orbit the Sun too, but Earth is the
only planet where we can live. The Sun gives us
just the right amount of heat and light.
4
  • Our sun is a star. It matter that is made of
    gases called hydrogen and helium. It is always
    burning and is very hot. The outside of the sun
    is 11,000 Fahrenheit or 6000 Celsius. A REALLY
    hot day on earth is only 100 degrees Fahrenheit.
    The sun's surface is about 100 times as hot as
    the hottest day on earth!!!

5
  • One hundred and nine Earths would be required to
    fit across the Sun's diameter, and its interior
    could hold over 1.3 million Earths.

6
  • The Sun is the center of our solar system. It is
    the largest object and contains approximately 98
    of the total solar systems mass. The Sun's outer
    visible layer has a temperature of 6,000C
    (11,000F). This layer has a spotty appearance
    due to the eruptions of energy at the surface.

7
Parts of the sun that can be seen
8
  • Some places on the Sun are cooler than the rest
    of the Sun. These places are dark areas on the
    Suns surface called sunspots. Sunspots are not
    permanent. Sometimes there are many sunspots.
    Sometimes there are fewer sunspots.

9
  • Around the Sun there is a layer of gases called
    the corona. You can see the corona during a total
    solar eclipse..

10
  • There are some large explosions that explode off
    the surface of the surface of the Sun from time
    to time. These large explosions are called flares
    or prominences.

flare
prominence
11
The Sun has layers.
  • Although scientists have never seen the inside of
    the Sun, they believe that they know what the Sun
    is made of.

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15
Solar Eclipse
  • The Sun is much bigger than the Moon. It looks
    about the same size as the Moon because it is
    much farther away from Earth than the Moon. The
    Moon orbits Earth. Together, Earth and the Moon
    orbit the Sun. Sometimes the Moon passes between
    Earth and the Sun, causing an eclipse. An eclipse
    occurs when one object passes into the shadow of
    another object. When the Moon passes between
    Earth and the Sun, the Moons shadow falls on
    part of Earth. This is a solar eclipse. Solar
    means sun.

16
Solar Eclipse
17
These are pictures of a solar eclipse from
Munich, Germany. The pictures were taken on
August 11, 1999 between 1227 and 1234 pm.
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  • Sometimes Earth passes between the Moon and the
    Sun. When this happens, Earths shadow falls on
    the Moon, and there is a lunar eclipse. The word
    lunar means moon. To see a lunar eclipse you must
    be on the side of Earth facing the Moon.

26
Lunar Eclipse
27
  • Our sun is very important to us. It gives us
    light, energy and heat. Without the sun we would
    not be able to live. Plants and animals need
    light and heat to live and grow.

28
  • We have learned to use the suns energy to heat
    water, and even to burn light bulbs. This is
    called solar energy.

29
Sun Safety
  • NEVER look directly at the Sun. The suns light
    is so bright it can damage your eyes.
  • Wear sunscreen when outdoors. The Suns rays can
    cause your skin to burn.

30
Sun Information
  1. The Sun is made of burning gases.
  2. All nine planets in our solar system revolve
    around the Sun.
  3. All life on Earth depends on the Suns energy.

31
  • 1. Our sun is a ______________.A. starB.
    planetC. light2. The sun gives
    us______________.A. waterB. heatC.
    animals3. Orbits means__________________.A.
    animalsB. circles aroundC. a planet4. We can
    only live on _________________.A. EarthB. the
    sunC. other planets

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33
  • The Sun is a star. A star is a hot glowing sphere
    of gases that gives
  • off energy. Earth receives the Suns energy in
    the form of heat and
  • light. The Sun is a medium-sized star. It looks
    much larger than other
  • stars because it is so close to Earth.
  • The Sun has a lot of mass. Since the Sun is so
    massive, the pull of
  • its gravity is strong. The Suns gravity pulls on
    Earth and the other
  • planets. A planet is a satellite of the Sun. The
    Suns gravity pulls the
  • planets toward the Sun. The planets motion keeps
    them from falling
  • into the Sun.
  • The Sun is millions of times hotter than the
    hottest place on Earth.
  • The light from the Sun is very bright, so you
    should never look directly
  • at the Sun. Some places on the Sun are cooler
    than the rest of the
  • Sun. These places are dark areas on the Suns
    surface called
  • sunspots. Sunspots are not permanent. Sometimes
    there are many
  • sunspots. Sometimes there are fewer sunspots.
    Around the Sun there
  • is a layer of gases called the corona. You can
    see the corona during
  • a total solar eclipse.
  • Coal, oil, and gas are fuels that contain energy
    from the Sun. A fuel
  • is something that is burned to provide heat or
    power. These fuels
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