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Inner Planets
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- 2. They aresimilar to each other. Closets planets to the sun. They are called “Terrestrial Planets” Terra: “Earthy or Rocky” MERCURY, VENUS, EARTH, AND MARS ROCKMETAL CORE
- 3. Mercury is closet tothe sun. Same size as our moon. Orange in color with lots of craters caused by early impacts. Hard to explore because it’s so close to the sun.
- 4. - Almost noatmosphere and no water - It is so small, it’s gravity can not hold the atmosphere around it. - It has the greatest temperature range of all planets. The side facing the sun = HOT The side away from sun = COLD The core has cooled causing the surface to shrink and crack. HOT COLD MERCURY
- 5. Venus is Earth’stwin. Same size and shape as Earth Yellow in color with craters too! Carters hard to see because of thick atmosphere We often see Venus as one of the brightest objects in the sky. VENUS
- 6. It takes 8months to rotate once = long days and nights! It takes 7.5 months to go around the sun = longer day than year. It rotates backwards “clockwise” after being hit long ago. Weather Report: CLOUDY… EVERY DAY !!! Runaway Greenhouse… The Atmosphere: -Thick - Mostly Carbon Dioxide - Atmospheric Pressure would crush us. This thick atmosphere of greenhouse gasses trap so much heat it is 870° Rotation is Funky… VENUS
- 7. Mars is calledthe Red Planet. It is half the size of Earth. Red in color because it has “rusted.” (Iron Oxide) Has 2 moons: Phobos and Deimos Has polar ice caps of frozen water and carbon dioxide Very Cold, temperatures reach a frigid -81ºF Evidence of river channels and running water long ago? MARS
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