Comets, Asteroids, Meteors

Comets, Asteroids, Meteors

A Review

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These are known as “dirty snowballs”.

Multiple Choice

Which of the following DOES NOT belong?

• dirty snowballs

• ice, dust, gas

• ion and dust tails

• slightly elliptical orbit

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Synthesis: disc-shaped; extends beyond Neptune’s orbit; extends to about 100 times the earth’s distance from the Sun

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Synthesis: most famous comet in history; causes the Orionids meteor shower; reappears every 76 years

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Synthesis: spherical region of comets; surrounds the solar system; found out to more than 1,000 times the distance between Pluto and the sun

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It was an unusually bright and exceptionally large comet which appeared last 1995.

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He was an amateur astronomer who observed a comet with the use of a pair of binoculars

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It was a comet which appeared from July 16 – 22, 1994 with more than 20 fragments colliding planet Jupiter.

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These are small and rocky space object which are found between the orbits of Mars and Jupiter.

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9.Synthesis: “string of pearls”; collided with Jupiter; first collision of two solar system bodies ever to be recorded

Multiple Choice

Which of the following is NOT an asteroid?

• Ceres

• Paitan

• Pallas

• Vesta

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These are chunk of rocks or dust in space.

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It is a meteoroid that burns up upon entering the earth’s atmosphere.

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Synthesis: stony-iron; hit the earth’s surface; few large ones left impact crater

Open Ended

12.How does pollution affect the visualization of meteors?