Extreme Earth Topic One

The Solar System The Inner Solar System 2 Parts of the Solar System The Inner Solar System Made up of… the Sun, Mercury, Venus, Earth, Mars, Asteroids and Satellites The Outer Solar System Made up of… Jupiter, Saturn, Uranus, Neptune, Pluto and Comets

What’s in a name? Ancient Roman astronomers gave names to the objects they studied in the sky. “Planets” = wanderers The viewed planets were named after Roman Gods

Venus Saturn Mars Jupiter mercury King of the Gods = ___________ God of War = ______________ Messenger of the Gods = _____________ Goddess of Love = _______________ God of agriculture = _______________ Venus Saturn Mars Jupiter mercury Jupiter Mars Mercury Venus Saturn

The rest The remaining planets were found using telescopes… Uranus in 1781 Neptune in 1846 Pluto in 1930

Earth’s birth story 4.6 billion years ago there was a collision within a giant disc-shaped cloud of dust Gravity slowly gathered nearby gas and dust into clumps The clumps became asteroids and small early planets

Earth’s birth story The larger objects continued to collide with one another creating bigger and bigger masses that slowly turned into our current solar system planets.

Location, Location, Location Miles from the Sun Mercury = 35.98 Venus = 67.24 Earth = 92.96 Mars = 141.6 Jupiter = 483.8 Saturn = 890.7 Uranus = 1.787 billion Neptune = 2.795 billion

Our planet Crust Mantle Outer Core Inner Core The Earth is made up of 3 layers Crust Mantle Outer Core Inner Core

Off to the computer Lab http://www.learner.org/interactives/dynamicearth/structure.html