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6th grade earth and rocks

6th grade (Year 7 in England) · 12 questions · Common Core: NGSS.MS-ESS2-1, NGSS.MS-ESS2-3, NGSS.MS-ESS2-2, NGSS.MS-LS4-1 · England: KS3 Chemistry: Earth and atmosphere (the rock cycle), KS3 Chemistry: Earth and atmosphere (composition of the Earth), KS2 Y6 Evolution and inheritance

Name

Date

Score/ 12

  1. Question 1

    Undisturbed rock layers, listed from the bottom up: E, C, D. Which layer is the youngest?

    • A. D
    • B. E
    • C. C

  2. Question 2

    Which agent carries the largest rocks and boulders long distances?

    • A. glaciers (moving ice)
    • B. sunlight
    • C. gentle wind
    • D. rain drops

  3. Question 3

    Fossils of tropical ferns have been found in Antarctica. What is the best explanation?

    • A. Antarctica has always been tropical
    • B. Antarctica was once in a warmer location, before plate movement carried it south
    • C. Ferns grow in ice today
    • D. The fossils were carried there by penguins

  4. Question 4

    Which of these rocks is sedimentary?

    • A. limestone
    • B. marble
    • C. granite
    • D. basalt

  5. Question 5

    Which type of weathering is this: iron minerals in rock rust and crumble?

    • A. physical (freeze–thaw, heating and cooling)
    • B. chemical
    • C. biological

  6. Question 6

    Pumice floats on water. Why?

    • A. It is full of gas bubbles trapped when lava cooled quickly
    • B. It contains fossils
    • C. It is made of wood
    • D. It is metamorphic

  7. Question 7

    Fossils: which statement is NOT true?

    • A. Humans and dinosaurs lived at the same time.
    • B. Insects can be preserved in amber (fossilised tree resin).
    • C. Most living things that ever lived did not become fossils.
    • D. Fossils show that many species have become extinct.

  8. Question 8

    Earth's structure: which statement is NOT true?

    • A. The Earth is hollow.
    • B. The mantle is the thickest layer.
    • C. The inner core is solid.
    • D. The crust is made of rock.

  9. Question 9

    Weathering and erosion: which statement is NOT true?

    • A. Plant roots can split rocks.
    • B. Rivers erode their banks and carry sediment.
    • C. Limestone caves form by chemical weathering.
    • D. Weathering only happens over a few days.

  10. Question 10

    What type of rock is obsidian?

    • A. igneous
    • B. sedimentary
    • C. metamorphic

  11. Question 11

    Which layer of the Earth is liquid?

    • A. the inner core
    • B. the outer core
    • C. all of them
    • D. the crust

  12. Question 12

    A crack filled with igneous rock (a dyke) cuts through layers A, B and C. What can you say about its age?

    • A. It is the same age as layer B
    • B. Its age cannot be compared
    • C. It is younger than all three layers
    • D. It is older than all three layers

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Answer key: 6th grade earth and rocks

  1. 1. A. D

  2. 2. A. glaciers (moving ice)

  3. 3. B. Antarctica was once in a warmer location, before plate movement carried it south

  4. 4. A. limestone

  5. 5. B. chemical

  6. 6. A. It is full of gas bubbles trapped when lava cooled quickly

  7. 7. A. Humans and dinosaurs lived at the same time.

  8. 8. A. The Earth is hollow.

  9. 9. D. Weathering only happens over a few days.

  10. 10. A. igneous

  11. 11. B. the outer core

  12. 12. C. It is younger than all three layers