warm-up 4/30 throwback thursday how does each rock form? –sedimentary –metamorphic –igneous...
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Warm-Up 4/30Warm-Up 4/30Throwback ThursdayThrowback Thursday
• How does each rock form?– Sedimentary– Metamorphic– Igneous
Get out your Load the Shuttle questions if you did not turn in yesterday.
Celestial Objects in our Celestial Objects in our Solar SystemSolar System
Celestial- positioned in or relating to the sky, or outer space as observed in
astronomy
Essential VocabularyEssential VocabularyRotationRotation – the time it takes to spin on – the time it takes to spin on its axis its axis
This makes one DAYThis makes one DAY
RevolutionRevolution – the time it takes to orbit – the time it takes to orbit the sun once the sun once
This makes one YEARThis makes one YEARhttp://www.classzone.com/books/earth_science/terc/content/visualizations/es0408/es0408page01.cfm?chapter_no=visualization
The Inner PlanetsThe Inner Planets
• Mercury, Venus, Earth and Mars
• Known as terrestrial planets because they are made of rock
The Outer PlanetsThe Outer Planets
Jupiter, Saturn, Uranus, and Neptune
Gas Giants – composed mostly of Hydrogen and Helium
The SunThe SunA ball of glowing gas!A ball of glowing gas!
Largest thing in our Largest thing in our solar systemsolar system– 99.8% of the mass 99.8% of the mass
of the solar system of the solar system
The MoonThe Moon
Our moon is named Our moon is named LunaLuna
The moon is a natural The moon is a natural satellite. satellite. – A satellite is anything that A satellite is anything that
orbits something else.orbits something else.
Galilean MoonsGalilean Moons The largest of the The largest of the
63 moons of Jupiter63 moons of Jupiter
Discovered by Discovered by Galileo Galilei on Galileo Galilei on Jan. 7, 1610 Jan. 7, 1610
Galilean MoonsGalilean Moons
Among the most massive rocky objects in Among the most massive rocky objects in the Solar System, with a radius larger than the Solar System, with a radius larger than
Mercury or any of the dwarf planets.Mercury or any of the dwarf planets.
Galilean MoonsGalilean MoonsIo the most geologically active object in the Solar the most geologically active object in the Solar
System System
Europa has a layer of icehas a layer of ice
Ganymede largest natural satellite in the Solar largest natural satellite in the Solar System and has a salt water ocean and oxygen System and has a salt water ocean and oxygen in it’s atmosphere. Larger than Mercury.in it’s atmosphere. Larger than Mercury.
Callisto may have possibly a subsurface ocean of liquid may have possibly a subsurface ocean of liquid water water
MeteoroidsMeteoroids
Meteoroids are rocky Meteoroids are rocky fragments of comets, fragments of comets, planets, moons, or planets, moons, or asteroids. asteroids.
Travel through space Travel through space without an orbit.without an orbit.
MeteorsMeteors
Meteors that have Meteors that have entered an entered an atmosphereatmosphere
Friction with the Friction with the molecules in the molecules in the atmosphere cause it atmosphere cause it to burnto burn
Commonly called Commonly called “shooting stars”“shooting stars”
MeteoritesMeteorites
Any part of a meteoroid Any part of a meteoroid that survives passage that survives passage through the atmosphere through the atmosphere andand lands on the surface lands on the surface a planet or moon. a planet or moon.
Largest meteorite found on Earth
Hoba, Namibia
CometsComets
Mixture of ices (both water and Mixture of ices (both water and frozen gases) dust, and rocks frozen gases) dust, and rocks
Have an elliptical orbit around the Have an elliptical orbit around the sunsun
AsteroidsAsteroids
Left over materials Left over materials from the formation of from the formation of the Solar System the Solar System
Composed of rock or Composed of rock or metalmetal
Smaller than a planet Smaller than a planet but larger than a but larger than a meteor meteor
Asteroid BeltAsteroid Belt
Most asteroids Most asteroids are located in are located in the asteroid the asteroid belt between belt between Mars and Mars and JupiterJupiter
VideoVideo
Asteroids, Comets, and MeteorsAsteroids, Comets, and Meteors
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