Small Bodies in the Solar System 20-3 pgs. 557-561 5/15/14 IN: List the 8 planets in order starting closest to the sun. Put you DRW on the box.

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Presentation transcript:

Small Bodies in the Solar System 20-3 pgs /15/14 IN: List the 8 planets in order starting closest to the sun. Put you DRW on the box

MercuryInner Planets Venusterrestrial Earth-small, dense, Marsand rocky JupiterOuter Planets Saturngas giants Uranus-large and made Neptunemostly of gas Asteroid Belt

Asteroids – large chunks of rock that orbit the Sun. Sometimes referred to as minor planets.

Asteroid Belt – the region of the solar system, between Mars and Jupiter, where asteroids orbit the Sun.

Comets Comets – a small body of ice, rock and cosmic dust loosely packed together.

The Tail of a Comet A comet’s ion tail consists of electrically charged particles of dust and gas.

Halley's Comet last appeared in the inner Solar System in 1986 and will next appear in mid Halley's Comet is the most famous of the periodic comets and can currently be seen every 75–76 years.

(You don’t have to draw this.)

Meteoroid, Meteorite, or Meteor? Meteoroid – a very small, rocky body that revolves around the sun. Meteor – the bright streak of light caused by dust burning up. Meteorite – a rock that reaches the Earth’s surface without burning up completely.

A “shooting star” is NOT an actual star.

Meteor Showers

Meteoroids and the Moon

Meteorites and the Earth Objects smaller than about 10 m across usually burn up in the atmosphere.

Meteor Crater The crater was created about 50,000 years ago. The object that excavated the crater was a nickel- iron meteorite about 50 meters (54 yards) across, which impacted the plain at a speed of several kilometers per second (28,600 mph).nickel iron

OUT: What would result if a meteorite struck the Earth?