8th Grade Ch. 3 Sec. 3 Inner Planets

Ch. 3 Sec. 3 Inner Planets

inner planets Mercury Venus Earth Mars terrestrial planets
close
together
no or
few moons
small, rocky surfaces

Mercury, messenger of the Roman gods closest planet to Sun no moons Mariner 10 space probe photographed it
similar to our moon-
size
flat plains
craters
almost no atmosphere temp. ranges from 450 0 C  -170 0 C (day) (night)

Closest planet to Sun
Smallest terrestrial
planet
No moons
Explored by Mariner 10
Similar to Earth’s moon-
size & craters
Almost no atmosphere
Planet of extremes- temp. -170 o - 450 o C
Front of card Picture & name of planet Back of card 7 stats (# of moons, names of moons, atmosphere, etc.)

Venus, goddess of love & beauty, springtime & flowers “ morning star” & “evening star” Earth’s twin- similar in size retrograde rotation = rotates backwards (east  west)
thick atmosphere-
sulfuric acid clouds
greenhouse effect- atmosphere traps heat
no moons

Whenever you see a bright object in the west after sunset, it is probably Venus.

The morning sky looking east

Venus Jupiter

Gaea, Earth goddess (ancient Greeks thought of her as Terra Mater ) Earth Mother Earth & moon 70% covered with water only planet with oceans
3 main layers-
crust
mantle
core

Mars, Roman god of war “ red planet” atmosphere mostly CO 2 polar ice caps covered by layer of frozen CO 2 tilted axis causes seasons
2 moons-
Phobos
Deimos

Mars is so cold that carbon dioxide (dry ice) freezes on the winter pole and Venus is so hot that tin and lead would melt on its surface.

Mars and Earth size comparison

polar ice cap
Mars

Is there life on Mars ?

Mars’s moons
very small
Phobos - larger moon
27 km in diameter
Deimos - smaller
15 km in diameter
both covered with craters

Spacecraft to Mars
Mars

Pathfinder preparations

Journey of the Pathfinder

Pathfinder airbags

360 Degree Panorama Mars Pathfinder Landing Site

Rover Sojourner The rover "Sojourner" is a six-wheeled vehicle which is controlled by an Earth-based operator, who uses images obtained by both the rover and lander systems. Note that the time delay is about 10 minutes, requiring some autonomous control by the rover.

8th Grade Ch. 3 Sec. 3 Inner Planets

by Karen Holewinski on Oct 05, 2010

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8th Grade Ch. 3 Sec. 3 Inner Planets — Presentation Transcript