Rocks, minerals, and geologic time review | Baamboozle - Baamboozle

English 22 Public

Earth science unit 4

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What is the longest period of geologic time? Epoch, era, eon, or period?

Eon

This is the Earth Science term for Earth's history from the moment it was formed until now.

Geologic time

This is the scientific term for putting the different things that happened on Earth in order, but not how long ago they actually happened.

Relative dating

This relative dating concept means that faults or rocks that break through others are younger than what they broke through.

Cross cutting/intrusion

This relative dating concept means that the newer stuff is on top.

Superposition

Tree ring dating and radiocarbon dating are both examples of this main classification of dating.

Absolute dating

This absolute dating concept means that 50% of a material decays within an approximate amount of time.

Half life

This classification of rock can describe it as dark and heavy as opposed to light and not dense. Can be contrasted with felsic rock.

Mafic

This type of rock is formed from lava or magma cooling.

Igneous

This type of rock is formed from great heat and pressure.

Metamorphic

This type of rock is formed by layers cementing together.

Sedimentary

This type of fossil shows a creature was there, but is not a bone or body part. Ex: footprint

Trace

What is an example of an imprint fossil?

Many answers could work.

What is an example of a replacement fossil?

Many answers can work.

What type of fossil was shown in Jurassic park as a mosquito trapped in sap?

Amber

What type of fossil is shown in this picture?

Mummification