Earth History Review before GTS | Baamboozle - Baamboozle

English 20 Public

8th Grade NC Science Earth History Review

Study Slideshow

Fossils that help determine the relative age of rocks around it are called

index fossil

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To learn how Earth’s Atmosphere has changed over time, scientists study air bubbles in what?

ice cores

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Which rock layer is the oldest?

B

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What type of rock are you most likely to find fossils in?

Sedimentary Rock

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What drives the process of plate tectonics?

Heat of the Earth, convection currents

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This law that states that older rocks are at the bottom and younger rocks are on top is called...

law of superposition

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The law of superposition finds the __________ age of rocks

relative

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How old is the Earth?

4.6 Billion years

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What is A called?

an intrusion

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Which fossil is the youngest?

mammoth tusks

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type of rock formed through the cooling and solidification of magma or lava.

igneous

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What do you call the supercontinent landmass formed million years ago?

Pangea

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True or False Tectonic plates are constantly moving at different rates and in different directions.

True

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How do scientists know that some mountains were once at the bottom of an ocean?

Freshwater rivers flow to the ocean.

Saltwater fish are found in some mountain streams.

Marine fossils have been found on the peaks of some mountain

Dinosaur bones have been discovered in the mountains.

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Which is the most accurate method scientists use to predict the age of Earth?

radioactive dating of rocks

investigating core samples from the Arctic.

relative dating of rock layers

comparing the ages of different fossils

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A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones?

the weather conditions in the area of the bones

the index fossils in the area of the bones

the kinds of trees living in the area of the bones

the birds living in the area of the bones

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