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© Brent Coley 2009 |
The Sun
• The sun is the center of our
solar system.
• It is a huge ball of hot gases
(mostly hydrogen
and helium).
• It is a star (an
object that produces
its own energy).
The Sun
• It produces its own energy
through a process called fusion.
• Energy from the sun
travels in waves.
• Some waves can be
seen as light, while
others can be felt
as heat.
The Sun
• Layers of the sun:
–Radiation Zone
–Convection Zone
The Sun
The Sun
• Photosphere:
the surface of the
sun – the part of
the sun we see
• Corona: the sun’s
The Sun
• sunspots: dark spots on the
sun that are cooler than the
rest of the photosphere
The Sun
• solar flares: brief bursts of
energy from the photosphere
The Sun
• solar wind: particles that are
released from a solar flare and
thrown into space
Public domain images
courtesy of NASA.