Transcript File

• The Sun and all the planets
of our Solar System began
as a giant cloud of
molecular gas and dust.
• Giant cloud of molecular
gas and dust.
• Something happened that
caused the cloud to
collapse.
• Something caused the cloud
to collapse.
• Maybe . . . a passing star, or
shock waves from a
supernova?
• A passing star . . . a
supernova?
• Fragment of rock or iron from
outer space.
• Survives passage through the
atmosphere of Earth.
• Impacts the surface of the Earth.
• Originate in the asteroid belt
between Mars and Jupiter.
EARTH ROCK
METEOR
• Same age and composition
as Earth.
• From elements of exploding stars.
• Came from exploding stars!
• 99% of all matter in the solar
nebula is now in the sun?
• Closest to the sun.
• Rotates really slow, too.
• D-I-F-F-E-R-E-N-T-I-A-T-I-O-N
• Invisible electromagnetic radiation.
• Gathers and focuses light