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NCSCOS Grade 8 Science - Topic: 8.E.2 Earth History

Quiz by NCDPI

Grade 8
Science
North Carolina Standard Course of Study

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6 questions
Show answers
  • Q1
    A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones?
    the index fossils in the area of the bones
    the weather conditions in the area of the bones
    the birds living in the area of the bones
    the kinds of trees living in the area of the bones
    60s
    8.E.2.1
  • Q2
    Which BEST describes how ice cores are important to the study of geologic history?
    They hold index fossils, which are used to date the different ice cores.
    They follow the Law of Superposition, which gives reasons for extinctions of species
    They show unconformities, which signal changes in deposition.
    They contain evidence showing changes in the atmospheric composition over time.
    60s
    8.E.2.2
  • Q3
    Scientists find dinosaur fossils in the bottom rock layers of a cliff and mammal fossils in the middle rock layer of the cliff. Which could BEST be concluded from this evidence?
    Dinosaurs were eaten by the mammals.
    Dinosaurs lived on Earth before the mammals.
    Dinosaurs and mammals lived at the same time.
    Dinosaurs ate plants.
    60s
    8.E.2.1
  • Q4
    Which statement BEST describes the Law of Superposition?
    In undisturbed layers of sedimentary rock, the upper rock layers are older than the lower rock layers.
    Each sedimentary layer of rock represents 1,000 years of Earth's age, much like the rings of a tree.
    In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.
    Rocks that form near volcanoes are older than surrounding rock.
    60s
    8.E.2.1
  • Q5
    What do earthquakes tell scientists about the history of the planet?
    Earth's climate is constantly changing.
    The oceans are much deeper today than millions years ago.
    The continents of Earth are continually moving.
    Dinosaurs became extinct about 65 million years ago.
    60s
    8.E.2.2
  • Q6
    How do scientists know that some mountains were once at the bottom of an ocean?
    Dinosaur bones have been discovered in the mountains.
    Saltwater fish are found in some mountain streams.
    Marine fossils have been found on the peaks of some mountains.
    Freshwater rivers flow to the ocean.
    60s
    8.E.2.2

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