Worksheet

Weathering and Erosion

Grade 4 - Science - Challenge Me

NameDate

  1. Observation: wet sand near the shore was carried away after repeated waves. Which explanation fits?

    • water eroded the steep slope faster
    • stronger wind caused more erosion
    • waves eroded the shoreline
    • roots weathered the surface as they grew

  2. Which agent caused the change in this observation: water froze in a crack and widened it?

    • plant roots
    • wind
    • ice
    • gravity and rain

  3. Which setup would likely erode faster?

    • a protected surface with no moving material
    • shoreline hit by many waves
    • a sealed rock kept dry indoors
    • protected shore with plants

  4. Which solution could slow this process caused by gravity and rain?

    • keeping large roots away from pavement can reduce cracking
    • dune grass can help hold beach sand
    • plant roots can hold soil in place
    • terraces can slow soil movement on slopes

  5. Which comparison gives useful evidence about weathering or erosion?

    • a slope label compared with another label but no observation
    • steep wet hill compared with terraced slope with plants
    • two trays with the same conditions but no sediment measured
    • rock color before and after with no force or movement tested

  6. Observation: mud slid downhill after heavy rain. Which explanation fits?

    • roots weathered the surface as they grew
    • stronger wind caused more erosion
    • water eroded the steep slope faster
    • water and gravity moved sediment downhill

  7. Which agent caused the change in this observation: roots grew into a sidewalk crack and pushed it wider?

    • wind
    • ice
    • plant roots
    • gravity and rain

  8. Which setup would likely erode faster?

    • a protected surface with no moving material
    • a sealed rock kept dry indoors
    • steeper slope with more water
    • flat tray with plant roots

  9. Which solution could slow this process caused by ice?

    • terraces can slow soil movement on slopes
    • sealing cracks can reduce water entering them
    • covering soil with plants can slow wind erosion
    • make the slope steeper and bare

  10. Which comparison gives useful evidence about weathering or erosion?

    • steeper slope with more water compared with flat tray with plant roots
    • a slope label compared with another label but no observation
    • rock color before and after with no force or movement tested
    • two trays with the same conditions but no sediment measured
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