AND ANSWERS
What is fate of all comets?
(a) To orbit the Sun until it becomes a red giant.
(b) To be flung out of the solar system.
(c) To crash into a planet.
(d) To break up and fall into the Sun. - Answer- (d) To break up and fall into the Sun.
True or False. Most meteorites are made of iron.
(a) True
(b) False - Answer- (b) False
Where did all the water that used to be on the surface of Mars disappear to?
(a) It is locked in the polar ice caps.
(b) It is buried beneath the surface as permafrost.
(c) It combined with Martian rocks to form clays.
(d) Water vapor in the upper atmosphere split into hydrogen and oxygen, and the
hydrogen escaped.
(e) All the above. - Answer- (e) All the above.
Where do air tankers usually drop their loads?
(a) On the fire
(b) Ahead or to the sides of the fire
(c) Behind the fire
(d) It does not matter - Answer- (b) Ahead or to the sides of the fire
What is an impact shatter cone?
(a) Cone shape impact craters that result from impacts into prestressed rock
assemblages.
(b) Asteroids that take on a cone shape during passage through the atmosphere.
(c) Cone-shaped rocks that result from the way the shock waves shatter rock.
(d) Cone-shaped central peaks of complex craters. - Answer- (c) Cone-shaped rocks
that result from the way the shock waves shatter rock.
What is the lesson of The Legend of Coyote in terms of wildfires?
(a) Fire is the Devils only friend
(b) Only you can fight forest fires
(c) Fire renews
(d) Fire is destructive to all life - Answer- (c) Fire renews
, What are crater rays?
(a) Lines of impact craters caused when a comet breaks up into many pieces before
impact.
(b) The flash of light that is produced when large impacts hit the moon.
(c) Lines of impact ejecta that extend very far from the ejecta blanket.
(d) The trail of dust and ash left behind as a meteor travels through the atmosphere. -
Answer- (c) Lines of impact ejecta that extend very far from the ejecta blanket.
True or False: There is so much debris (junk) in Earth's orbit that it is a danger to
orbiting satellites, the space station, and astronauts.
(a) True
(b) False - Answer- (a) True
True or False: In the United States, each year lightning starts more wildfires than people
do.
(a) True
(b) False - Answer- (b) False
True or False: All asteroids reside in a belt that lies between Mars and Jupiter.
(a) True
(b) False - Answer- (b) False
What killed the Space Shuttle Columbia astronauts?
(a) The shuttle's main engines blew up during launch.
(b) A fire broke out in the orbiter during testing.
(c) The shuttle plunged into the sea after an explosion involving the solid rocket booster
and external tank shortly after launch.
(d) The orbiter burned up upon re-entry due to damage to one of its wings. - Answer- (d)
The orbiter burned up upon re-entry due to damage to one of its wings.
When gas comes off of a comet, which direction does it head to form the gas tail?
(a) Away from the Sun
(b) Away from the direction the comet is traveling
(c) Away from Sun and away from the direction that the comet is traveling
(d) Toward the Sun and toward the direction that the comet is traveling - Answer- (a)
Away from the Sun
Why is Haley's comet the most famous of all comets?
(a) It is the only comet visible to the naked eye that comes around about once in a
lifetime.
(b) It is the only comet to orbit the Sun inside of Jupiter's orbit.
(c) It has the longest tail of any comet viewed from Earth.
(d) All of the above - Answer- (a) It is the only comet visible to the naked eye that comes
around about once in a lifetime.