Ch 3, 6th Grade Question Preview (ID: 40069)
Earth's Systems.
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Which is NOT an Earth system?
a) atmosphere
b) biosphere
c) stratosphere
d) hydrosphere
Which of these best describes the atmosphere's density?
a) the density increases the higher you go up
b) the density stays the same no matter where you are in the atmosphere
c) the density decreases as you go up
d) the density changes depending on cloud cover and temperature
The atmosphere is mostly made of
a) nitrogen
b) oxygen
c) carbon dioxide
d) methane
Which layer of the atmosphere contains weather?`
a) troposphere
b) stratosphere
c) mesosphere
d) thermosphere
Where can water be found on Earth?
a) in the air
b) on the surface
c) underground
d) all of the above
The amount of water on Earth changes
a) true
b) false
c)
d)
A natural location where water is stored is called a
a) watershed
b) sink
c) rain shadow
d) reservoir
Most organisms need ___ water to survive
a) ground
b) fresh
c) salt
d) sparkling
The largest reservoir on Earth is the
a) ocean
b) ice caps
c) Ogallala aquifer
d) Waverly lake
How much of the freshwater on Earth is easily accessible?
a) 25%
b) more than 34%
c) less than 1%
d) 3%
The frozen portion of water on Earth's surface is called the
a) iceosphere
b) frozosphere
c) glaciosphere
d) cryosphere
How much freshwater is in the cryosphere?
a) 79%
b) 99%
c) less than 1%
d) 0%, it's all salt water
Small pieces of rock are pressed together and cemented to form
a) igneous rocks
b) metamorphic rocks
c) organic rocks
d) sedimentary rocks
The thin, outer layer of Earth is the
a) crust
b) core
c) mantle
d) mesosphere
The middle layer of Earth that flows is called the
a) crust
b) core
c) mantle
d) troposphere
A substance is solid, created in a lab, inorganic, has a crystal structure, and a definite chemical composition. Is it a mineral?
a) yes
b) no
c)
d)
The way a mineral reflects light is its
a) luster
b) hardness
c) streak
d) color
A mineral's resistance to scratching is
a) luster
b) streak
c) color
d) hardness
Weather is the pattern of the atmosphere over a long period.
a) true
b) false
c)
d)
How much of the atmosphere is nitrogen?
a) 78%
b) 21%
c) 1%
d) 33%
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