inner planets
TRANSCRIPT
MercuryVenusEarthMars
INNER PLANETS
They are similar to each other.Closets planets to the sun.They are called “Terrestrial Planets”
Terra: “Earthy or Rocky”
MERCURY, VENUS, EARTH, AND MARS
ROCKMETAL CORE
Mercury is closet to the 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.
- Almost no atmosphere 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
Venus is Earth’s twin.
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
It takes 8 months 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
Mars is called the 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
Olympus Mon
Valles Marineris