SHORT QUIZ9/24/2015

UNIT 3: ASTEROIDS, COMETS AND METEORS

•1. comets and asteroids have irregular shapes and varied sizes.

•2. The major difference of comet and asteroid are their origin.

•3. The chemical composition of an asteroid is important for scientists

•4. ALVAREZ HYPOTHESIS PROPOSED THAT A COMET WITH APPROXIMATELY 10 KILOMETERS IN DIAMETER MADE AN IMPACT WITH EARTH

•5. COMET HALE BOPP CONTAINED NICKEL AND IRON WHICH EXPLAINED THE VERY BRIGHT APPEARANCE OF THE COMET

IN DECEMBER 2012, DURING THE DOOMSDAY PROPHECIES, WHAT ASTEROID MADE A NEAR APPROACH TO EARTH?•A. asteroid Toutatis•B. asteroid 2012 da 14•C. asteroid ceres•D. asteroid Halley

THESE ARE MINERALS THAT CONTAIN THE ELEMENTS SILICON, OXYGEN AT LEAST ONE METAL•A. ARGON•B. SILICATES• C. SODIUM•D. NICKEL

THESE ARE REMNANTS FROM THE FORMATION OF OUR SOLAR SYSTEM•A. COMET•B. ASTEROID• C. METEOR•D. NEO

ASTEROID IS ALSO CALLED A__________

• A. MAJOR PLANET• B. PLANETOID• C. SPACE ROCK• D. ALL OF THE ABOVE

ASTEROIDS ARE MOSTLY COMPOSED OF METALS

A. SILICONB. SODIUMC. ARGOND. NICKLE

•LONG PERIOD COMETS COME FROM THE ______________________

•SHORT PERIODS COMETS COME FROM A _________________________

•ASTEROIDS COME FROM A _________________

•A famous comet in the 20th century with a period of 75-79 years.