8th Grade Challenge Earth Science

Do you remember 8th Grade Earth science?

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HintAnswer (1-2 words)letter
Type of dating used with metamorphic rockA
The most abundant type of coalB
Rusting is this type of weatheringC
Type of tectonic plates at the mid-ocean ridgeD
Movement of weathered material from its place of originE
A continuous fracture through rock layers causing displacementF
The study of rocksG
The radioactive decay of 1/2 the amount of an isotopeH
When magma pushes up through rock layers but doesn't make it to the surfaceI
First birds appeared in this geologic time periodJ
Type of landscape with lots of hollow spaces beneath the surfaceK
Earth's crust + upper mantle L
A water saturated type of gravitational erosionM
HintAnswer (1-2 words)letter
A sea arch on landN
Lake that forms when a meander is cut off from the riverO
Type of glacial erosionP
Our current geological time period Q
Type of valley that forms when continental tectonic plates separateR
When oceanic plates go below continental platesS
Deepest part of the oceanT
Part of the lithosphereU
Lava releasing structureV
The breaking down of rockW
Pre-existing rock that was encompassed by magma but didn't meltX
Term describing the quantity taken from a resource depositY
Suffix relating to a particular geologic eraZ
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Last Updated: Jun 18, 2019

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