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MS-ESS1-4 : A Fascinating Fossil

Last updated about 1 year ago

10 questions

Required

5

Draggable item		Corresponding Item
Absolute Dating		techniques allow us to predict a numerical age or range for past events relatively accurately.
Radiometric Dating		Technique that relies heavily on looking at the radioactive elements in rocks and the decay that took over time.
Geologic Time Scale		forms when magma cools down and solidifies and is useful for radiometric dating.
Igneous Rocks		is the process by which remains or traces of past life give rise to fossils.
Fossilization		is a linear representation of the most important events that occurred over a period of time in Earth’s history.

Required

7

Draggable item		Corresponding Item
Index Fossils		is a crack or break in the rocks of the Earth’s crust which results in the displacement of the rocks on the opposite sides of the fracture.
Fault		are fossils that are widespread geographically and can be used as time indicators to match rock layers of the same age. Often, they lived over a large area for a short period of time.
Rock Strata		The action of geologic processes, such as faults, folds, magma intrusions, or erosion, that move rock layers into different positions.
Principle of Superposition		infers that rock layers are ordered on the vertical axis by age; younger rock layers are above ↑ and older rock layers are below ↓.
Sedimentary Rocks		Technique that allows us to order events by looking at the oldest vs youngest rock layers.
Relative Dating		are horizontal ↔ rock layers originating from the accumulation or compaction of sediments that give rise to sedimentary rocks.
Principle of Cross-cutting		forms by compaction of rock fragments or remains of living organisms. Useful for relative dating techniques.

Required

1

Based on the picture,
circle 1 of the organisms below as “youngest”
circle 1 of the organisms below as “oldest”
the other pictures you can ignore or circle “neither”