planets in our solar system

The Solar System:

The Solar System Big Question: What makes up the solar system?

What the Solar System Is:

What the Solar System Is Nine planets, the sun and asteroids and comets Sun contains 99.8 percent of mass of solar system Sun is central object around which the other objects revolve

The Planets Listen to the video clip and take notes:

The Planets Listen to the video clip and take notes Inner Planets Closer to the sun More dense Made of rock Thinner atmosphere Smaller Warmer No rings Terrestrial planets Outer Planets Farther away from sun Less dense Made of gas Thicker atmosphere Bigger Colder Have rings Jovian planets

Mercury:

Mercury Closest to the sun Temps 425 degrees celcius to -173 degrees celcius Less gravity One day = 59 earth days 1 year = 88 earth days long Half the size of earth Too hard to breath b/c there is barely any air 3,000 miles wide No moons Very little atmosphere No water Covered with craters

Venus:

Venus Acid sulfuric clouds blocks the surface Same size of earth and same gravity Has twice as much sunlight as earth, but only 2% stays in Thick cloud cover Hottest planet 1 year=255 days CO2 More pressure than on earth No moons No water, most toxic 7,500 miles wide Rotates opposite than Earth

Earth:

Earth Only planet that supports life b/c of water Atmosphere keeps earth temperate 22 degrees celcius One moon Largest inner planet with oxygen in atmosphere English named 8,000 miles wide Earth means ground we walk on

Mars:

Mars Farthest inner planet Reddish dust contains iron 23 degrees celcius Largest volcano in solar system called Olympus Mons Two moons Desert like surface Thin atmosphere with strong winds One year = 130 days 4,200 miles wide

Jupiter:

Jupiter Biggest outer planet Closest to inner planets Red swirl of dust – The Big Red Spot Mostly made of gas Hydrogen Closest outer planet to sun 63 moons 88,900 miles across Core is hotter than sun Thick atmosphere makes surface hot Liquid slush like surface Surrounded by one thin ring One day = 10 earth hours 10 times larger than earth

Saturn:

Saturn Has rings made of rock, ice, and dust Second biggest Jovian planet 31 moons Rings are 260,000 miles away from surface 9 times the size of earth Frozen gases

Uranus:

Uranus Named after Greek god Newly named Tilts sideways – 98 degrees Ring goes up and down Smallest Jovian planet Blue and green gases 52,000 miles wide Frozen gas 22 moons Difficult to see

Neptune:

Neptune Named after Roman god Symbol is trident One year = 165 earth years -214 degrees Celsius Storm Neptune and Pluto switch orbits One day=19 earth hours 30,400 miles across 12 moons Frozen gases

Pluto:

Pluto Crosses orbits with Neptune Dwarf planet Farthest away from sun Less than half the size of the moon Coldest planet Smallest planet Darkest planet Not the smallest dwarf planet Called a Pluton 1,400 miles wide Icy surface Atmosphere icy Liquid under the surface

Other dwarf planets:

Other dwarf planets Eris Largest known dwarf planet made of ice and rock Temperatures can be -316 degrees to -405 degrees One moon named Dysnomia 10 billion miles away from sun Called a Pluton Sun looks like a little star to it

What did you learn?:

What did you learn? Give a fact Jupiter is 10 times bigger than Earth Mercury is half the size of Earth. Jupiter is hotter than the surface of the Sun Mars has the largest volcano in the solar system Venus has twice as much sunlight as Earth Earth is the only planet that can support life Saturn’s day is 10 Earth hours Pluto is called a Pluton Venus has acid sulfuric clouds.

Slide 15:

Earth means the ground we walk on. Venus is the planet of love. Saturn has rings made of rock, ice, and dust. Jupiter has a red dust storm that doesn’t stop. Neptune is the farthest Jovian planet. 2 Earth’s can fit in Jupiter’s storm. Pluto is the farthest away from the sun.

Other Objects in Space:

Other Objects in Space Asteroids – rocky fragments similar to those of the inner planets Comet – mass of dust, ice, frozen gas, and rock Meteoroids – small fragments of material Tiny, about 1 gram in size Meteors – enter earth’s atmosphere Meteorite – strikes the Earth’s surface.