Misc.
two kinds of crust are oceanic and ___________
continental
the soil-horizon layers are humus, topsoil, subsoil and ___________
bedrock
the layer of the earth beneath the crust
mantle
pumice, obsidian and granite are what type of rock
igneous
matter that settles to the bottom or sides of a body of water
sediment
A minor earthquake
tremor
A _________ has never been found in the fossil record
transitional form
marble and slate are what type of rock
metamorphic
to test the hardness of rock
scratch test
the temperature of the earth _________ as its layers deepen
increases
a rock or mineral that can reflect light
luster
Name 3 renewable energy sources
hydropower, solar power, wind power
Name 3 nonrenewable energy sources
coal, natural gas, oil
Common forms of ____________ rock are sandstone, limestone and shale
sedimentary
An earthquake's energy comes from its
focus
T/F - An animal can only be fossilized if it has been buried at the same time sedimentary layers were forming
true
The two main ingredients in soil are _______ and minerals
crystals
_______ is the loss of soil by water or wind
Erosion
Pumice has _______ density than granite
a. less
b. greater
less
rock formed from hardened sediments
sedimentary
rock formed from hot lava or magma
igneous
loam
a break between two moving plates
fault
large areas of the earth's crust
crustal plates
rock that seems to have been changed by heat or pressure
metamorphic