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Which era is called the "Age of Dinosaurs"?
Mesozoic Era
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How old is the Earth?
4.5 billion years
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What is a fossil?
Preserved remains
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What did the Big Bang create?
Space and time
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What does stratigraphy study?
Rock layers
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What do we call a scientist who studies fossils?
Paleontologist
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What is the name of the supercontinent that existed 250 million years ago?
Pangaea
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What do scientists use to divide Earth’s history?
Geologic time
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What started the universe?
The Big Bang
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What type of fossil is a footprint?
Trace fossil
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In which era did the first organisms evolve? Pa_______
Paleozoic Era
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What covers dead organisms to form fossils?
Mud or sand
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How many extinctions have there been?
Five
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Phanerozoic is an e____?
Eon
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What type of fossil is a bone?
Body fossil
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What do fossils in rock layers tell us?
Earth’s history
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Which era is called the "Age of Mammals"?
Cenozoic Era
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How old is the universe?
13.8 billion years
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Do fossils form quickly or slowly?
Slowly
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Are deeper rock layers older or younger?
Older
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