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Dive into the formation of our Solar System, from the conservation of angular momentum to the classification of planets and dwarf planets. Discover unique features of each planet, like the hidden surface of Venus and the giant storm on Neptune. Learn about asteroid belts, Jupiter's moons, the Sun's size, and outer planet characteristics. Uncover Mars mysteries, from Olympus Mons to potential water sources. Explore the differences between Inner and Outer Planets, and more!
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Formation of the Moon- http://www.youtube.com/watch?v=WpOKztEiMqo&feature=related • Formation of our Solar System • Conservation of Angular Momentum • Why are the larger, gaseous planets farther away and the smaller, rocky planets that are closer? • How do we have an estimate of our solar system’s age? • What makes something a dwarf planet? The IAU says it is a celestial body orbiting the Sun a) massive enough to be rounded by its own gravity b) has not cleared its orbit of planetesimals.
Collisions dominated the early solar system(What is the key force here?) • dust collects together into planetesimals • planetesimals collect together into protoplanets • Protoplanets gather up left over debris and became planets
The solar system formed from a giant cloud of rotating, cold gas and dust called the solar nebula about 4.6 billion years ago
The planets formed by the accretion of planetesimals and the accumulation of gases in the solar nebula
Which planet formed at the furthest location from the Sun where it was hot enough to boil water ? • Mercury • Mars • Jupiter • Neptune • None of the above
Venus Earth Discuss size of Earth, Venus, Mars, Mercury & Moon _______ is nearly same diameter as _______ _____ is about ¼ Earth’s diameter Mercury is smaller than Mars, about size of Saturn’s moon T___ and Jupiter’s moon G_______ ________ is nearly half the Earth’s diameter Mars Moon itan anymede
The Sun is the Largest Object in the Solar System • The Sun contains more than 99.85% of the total mass of the solar system • If you put all the planets in the solar system together, they would not fill up the volume of the Sun • 110 Earths or 10 Jupiters fit across the diameter of the Sun How big is the Sun?
The Sun has a diameter of approximately 1.4 million kilometers. Roughly how many Earths would fit across the diameter of the Sun? • 10 • 100 • 1000 • 10,000 • 1 million
Where are the asteroid belts and what are their names? What is the name of the largest asteroid in the Main Asteroid belt? Discuss the VUP’s. What is the name of the largest asteroid in the Kuiper belt?
Mercury Jupiter
Mercury Jupiter
Brilliant blue Neptune has a giant storm too • Which of these is Earth-like? • Which of these is Jupiter-like? • Or are they the same (both Earth-like or Jupiter-like)?
How should we divide the Solar System? By Density?
Inner (Terrestrial) Planets • Mercury • Venus • Earth • Mars • Characteristics • Small • Rocky • Very close to the Sun • Have few moons • Have no rings • a central metallic core, mostly iron, the Moon is similar, but lacks an iron core
Outer (Jovian) Planets • Jupiter • Saturn • Uranaus • Neptune • Characteristics • Large • Gaseous • Far from the Sun • Have many moons • Have rings • Have magnetic fields • thick atmosphere and a dense molten core
The surface of Venus is completely hidden beneath permanent cloud cover
Venus is covered with gently rolling hills and numerous volcanoes
EARTH • The Privileged Planet
Enormous shield volcanoes Valles Marineris is as big as the entire United States of America
Ice caps dominate the poles during different times of the year
Olympus Mons - the largest volcano in the solar system has a base larger than the state of Arizona
Early space probes to Mars found no canals but did find some controversial features
Ohio River valley on Earth River channels on Mars Surface features indicate that water once flowed on Mars
Note the remote-control rover, Sojourner, next to a Martian rock 1999 Picture from the Mars Pathfinder Lander
Mars Water/Ice Discovered North Pole only None found on South Pole – only CO2 – dry ice Activities Manual Prather • Offerdahl • Slater
The Martian meteorite found in Antarctica has not provided conclusive evidence about life on Mars
Jupiter Saturn Uranus Neptune Pluto Enormous Gaseous Far from Sun Separated by large distances Have ring systems Have many moons Outer Planets Outer (Jovian) Planets
Inner planets are vastly different than outer planets in terms of orbital distances
Besides being the largest planet, Jupiter is probably best known for its GreatRed Spot - a hurricane-like storm that has been observed ever since the invention of the telescope.
Saturn has the most extensive ring system in the solar system