Stars
Plate Tectonics
Fossils
Soil
100

Clouds of gas and dust

What is a Nebula?

100
The order of Earth's layers

What is crust, mantle, core?

100

Fossil that shows animal activity but not form

What is a Trace Fossil?

100

Types of rocks

What are igneous, sedimentary, and metamorphic?

200

Heaviest element in star core

What is iron?

200

The lightest crust type

What is continental crust?

200

This is how fossils are formed

What happens when living organism is buried in sediment?

200

Process to determine rock age

What is relative dating?

300

Color used to depict hottest star

what is white?

300

Type of plate boundaries that create ridges

What are divergent plate boundaries?

300

Definition of a fossil

What are preserved remains of ancient animals?

300

Principle that says layer on top is more recent

What is principle of superposition?

400

The diameter of the sun

What is 864,938 miles?

400

Name of land where all continents were joined

What is Pangea?

400

Method to age fossils

What is radioactive decay?

400

Principle that states that object cutting across another is younger than the one it's cutting across

What are cross cutting relationships?

500

The constellation with the most stars

What is Centaurus?

500

The largest volcano

What is Mauna Loa?

500

The biggest dinosaur fossil 

What is Australotitan cooperensis?

500

The time when an asteroid changed soil

What happened 66 million years ago?

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