Earth
Geology is the study of ___________.
Earth
Scientists have collected enough data based on indirect observation to divid the Earth up into three _____________ layers or five _____________ layers.
Compositional, mechanical
What layer is directly beneath the Earth’s crust?
Mantle
What War started in 1914?
WWI
Solid, naturally-occurring, inorganic substances that have a definite chemical composition and a crystalline structure are called_______.
Minerals
What method do Geochemists use to study the Earth?
Gravity
What are the compositional layers?
Crust, mantle, core
What term describes how the surface of a mineral reflect light?
Luster
One of Science’s great mysteries is where Earth’s ___________ __________ comes from that generates Earth’s magnetic field.
Electrical current
What is transpiration?
Evaporation of water from plants
Earth Science combines geology, chemistry, physics, and _________.
Biology
What are the mechanical layers?
lithosphere, asthenosphere, mesosphere, outer core, inner core.
A series of processes in which forces within Earth and at the surface cause rocks to continuously change from one type to another is called?
rock cycle
Life on Earth would not be possible without Earth’s ______ _________.
Magnetic field
What are the building blocks of rocks?
Minerals
Transpiration depletes ______ _______?
Soil moisture
The Earth's crust is composed of Earth's outermost layer of _______?
Rock
In what year did German geologist, Beno Gutenberg analyze seismic waves and conclude that there is another drastic change in the makeup of the Earth significantly below the Moho level?
1914
The lithosphere is composed of __________ and _________.
Rocks and minerals
Pyrite, is also known as _____ ______.
Fools gold
What kind of instrument detects seismic waves that travel through the Earth?
Seismographs
Most of the rocks that make up the crust are composed of silicates, which are____?
Chemical compounds containing silicon and oxygen.
What is the level below the Moho level called?
Gutenberg discontinuity
What is sediment?
Small, solid fragments of rock-like gravel, sand, silt, mud, or clay.
Hardness refers to the mineral’s ability to resist being __________.
scratched