Date post: | 18-Dec-2014 |
Category: |
Education |
Upload: | all-saints-science |
View: | 1,384 times |
Download: | 0 times |
Ch. 3 Sec. 3Ch. 3 Sec. 3Inner PlanetsInner Planets
inner inner planetsplanets
Mercury Venus Earth Mars
terrestrial planets
• close together• no or
few moons
small, rocky surfaces
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 4500 C -1700 C
(day) (night) Mercury, messenger of the Roman gods
•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. -170o- 450oC
Front of card
Picture & name of planet
Back of card
7 stats (# of moons, names of moons, atmosphere, etc.)
“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
Venus, goddess of love & beauty, springtime & flowers
Whenever you see a bright object Whenever you see a bright object in the west after sunset, it is in the west after sunset, it is
probably Venus.probably Venus.
The morning sky looking east
Venus
Jupiter
70% covered with water
only planet with oceans
3 main layers-
1. crust
2. mantle
3. core
Gaea, Earth goddess (ancient Greeks thought of her as Terra Mater) Earth Mother
Earth & moon
“red planet”
atmosphere mostly CO2
polar ice caps covered by layer of frozen CO2
tilted axis causes seasons
2 moons-
1. Phobos
2. Deimos
Mars, Roman god of war
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.