Georgia Science Grade 6

Chapter 5: Earth's Energy and Mineral Resources

CRCT Practice

1
Which is a sedimentary rock formed from decayed plant matter?
A)biomass
B)coal
C)natural gas
D)oil
2
What percentage of the energy used in the United States comes from fossils fuels?
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A)6%
B)24%
C)47%
D)86%
3
What percentage of our energy sources would be lost if coal runs out?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/an.jpg','popWin', 'width=315,height=295,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (22.0K)</a>
A)6%
B)8%
C)23%
D)39%
4
Which type of energy source is shown in this diagram?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/ao.jpg','popWin', 'width=346,height=205,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
A)coal
B)fission
C)fusion
D)natural gas
5
What is produced that drives a turbine, which turns a generator?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/ao.jpg','popWin', 'width=346,height=205,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
A)atoms
B)neutrons
C)steam
D)waste
6
Which type of energy uses magma or hot dry rocks to generate electricity?
A)geothermal
B)hydroelectric
C)nuclear
D)solar
7
Which is a renewable resource?
A)coal
B)nuclear
C)oil
D)solar
8
Which is a new potential source of methane?
A)coal
B)hydrates
C)hydrocarbons
D)petroleum
9
Which helps to reduce the demand for new mineral resources?
A)generating
B)mining
C)mining
D)refining
10
What type of nonmetallic mineral resource is being used in this picture?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/ap.jpg','popWin', 'width=317,height=306,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (43.0K)</a>
A)halite
B)trona
C)garnet
D)corundum
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