Rock Layers (Geologic Time)

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What do scientists use to help figure out geologic time?

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Rock layers are used by scientists to help determine geologic time.

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In which era did dinosaurs live?

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Dinosaurs lived in the Mesozoic era.

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What is the process of breaking down rocks into smaller pieces called?

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The process is called weathering.

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What type of rock is formed from sediment compacted by the weight of layers above?

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Sedimentary rock is formed from compacted sediment.

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What type of dating do scientists use to determine the exact age of something?

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Scientists use absolute dating to find the exact age.

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What is the term for the study of rock layers and layering?

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The study of rock layers and layering is called stratigraphy.

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What are fossils?

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Fossils are the preserved remains or traces of ancient organisms.

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What is erosion?

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Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes.

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What is the difference between relative dating and absolute dating?

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Relative dating determines the sequence of events, while absolute dating provides a specific age.

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What is a sedimentary rock?

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Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles.