27-12-2012, 04:37 PM
Our Solar System
Our Solar System.ppt (Size: 586 KB / Downloads: 31)
EARTH AND SPACE SCIENCE Tennessee Standard:
Content Standard: 7.0 Earth and Its Place in the Universe
The student will investigate the structure of the universe.
Learning Expectations:
7.1 Recognize the basic components of the universe.
Our Solar System
Our solar system is made up of:
Sun
Nine planets
Their moons
Asteroids
Comets
Inner Planets
The inner four rocky planets at the center of the solar system are:
Mercury
Venus
Earth
Mars
Mercury
Planet nearest the sun
Second smallest planet
Covered with craters
Has no moons or rings
About size of Earth’s moon
Venus
Sister planet to Earth
Has no moons or rings
Hot, thick atmosphere
Brightest object in sky besides sun and moon (looks like bright star)
Covered with craters, volcanoes, and mountains
Earth
Third planet from sun
Only planet known to have life and liquid water
Atmosphere composed of composed of Nitrogen (78%), Oxygen (21%), and other gases (1%).
Mars
Fourth planet from sun
Appears as bright reddish color in the night sky
Surface features volcanoes and huge dust storms
Has 2 moons: Phobos and Deimos
Asteroids
Small bodies
Believed to be left over from the beginning of the solar system billions of years ago
100,000 asteroids lie in belt between Mars and Jupiter
Largest asteroids have been given names