the phase of the moon that immediately precedes the new moon is ____ ____.
What is waning crescent
100
methane absorbs the red and yellow light on ____, while the clouds of these planets reflect the green and blue light
What is uranus and neptune
100
in 1543 ____ published hie veiws of earth and other planets revolving around the sun.
What is copernicus
100
are peices of rock that strike the surface of a moon or planet
What is meteorites
100
a comet develops a come because of ____.
What is heat from the sun
200
a ____ ocurrs when the moon moves directly betwwen the sun and earth and throws a shadow on earth
What is solar eclipse
200
pluto's orbit sometimes causes this planet to be the 9th and not the 8th frome the sun
What is neptune
200
two of the inner planets are ____ and ____
What is mars and venus or earth and mercury
200
____ ____ ____ ____ ____ _____ ____ for a planet to form in the asteroid belt.
What is jupiter's gravuty may have been too great
200
a comet develops a tail because of ____.
What is the solar wind
300
the sun's rays strike earth at their northernmost and southernmost positions during ____.
What is winter and summer solstices
300
____ has colorful clouds in bands of white,red,tan,and brown
What is jupiter
300
scientists know the least about the planet ____.
What is pluto
300
this planet has no true atmosphere.
What is mercury
300
scientists hypothosize that the sun formed ____.
What is from a cloud of gas and dust
400
the yearly orbit of earth around the sun is called it's ____.
What is revolution
400
most of the frozen ice in a comet's _____ vaporizes after the comet's many trips around the sun.
What is nucleus
400
smaller peices of rock from old broken up comets become ____.
What is meteoroids
400
pluto differs from the other outer planets because ____.
a.it is not surrounded by a dense atmosphere
b.it is the only outer planet with a solid,rocky surface
c.its moon,charon,has a diameter equal to half of pluto's
d.all of the above
What is all of the above
400
____ is an outer planet with an unusual orbit
What is pluto
500
summer ocurrs on the hemisphere of earth that is ____.
What is tilted toward the sun
500
vaporized gases and released dust form a bright cloud called a(an) ____ around the solid part of a comet.
What is coma
500
smalll peices of rock that enter earth's atmosphere at speeds of 15 to 70 km/s and burn up are called ____.
What is meteors
500
pluto is different from the other outer planets because ____.
a.it may have been a moon from one of the inner planets that escaped
b.it formed near earth and moved outward
c.it is close to the inner planets
d.none of the above
What is none of the above
500
evidence suggests that ____ originate in the oort cloud located beyond the orbit of pluto