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changes in landform over time

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  • Ocean waves breaking rocks into smaller pieces is an example of:
    Flooding
    Deposition
    Erosion
    Weathering
  • What force pulls water downhill and helps cause erosion?
    heat
    light
    sound
    gravity
  • Which example shows physical weathering?
    Soil settling at the bottom of a river
    Sand blowing across a desert
    A river carrying rocks downstream
    Water freezing in rock cracks and breaking the rock apart
  • What happens when rainfall increases?
    More erosion and more deposition occur
    Less erosion happens
    Weathering stops
    Nothing changes
  • Which force can cause erosion?
    sound
    heat
    wind
    light
  • What is physical weathering?
    Soil being carried by wind
    Rocks melting into lava
    Rocks breaking into smaller pieces without changing material
    Rocks disappearing into water
  • When does deposition usually happen in water?
    When water slows down
    When water disappears
    When water freezes
    When water speeds up
  • Water gets into a small crack in a rock. Overnight the temperature drops and the water freezes. What will most likely happen to the rock?
    the rock will melt
    Nothing will happen
    The rock will turn into soil
    The rock will crack because the ice expands
  • After a flood, rocks and soil are found on sidewalks and streets. What does this show?
    Rocks melted
    Weathering occurred
    The wind carried the rocks
    Erosion moved materials during the flood
  • Which example shows erosion?
    Soil forming from rock
    Water freezing in cracks
    Wind blowing sand across land
    A rock cracking apart
  • What happens during erosion?
    Rocks change color
    Rocks melt underground
    Rocks break into smaller pieces
    Materials like sand and soil move to a new place
  • Which shows the correct order of processes?
    Erosion → Weathering → Deposition
    Erosion → Deposition → Weathering
    Weathering → Erosion → Deposition
    Deposition → Weathering → Erosion
  • What usually happens first?
    Flooding
    Erosion
    Deposition
    Weathering
  • What is sediment?
    Ice inside rocks
    Soil, sand, and small rocks that can be moved by water or wi
    Air trapped underground
    Melted rock
  • What is the best evidence that a flood happened?
    Clear skies
    Dry soil
    Warm weather
    Rocks and soil left on sidewalks and roads
  • What happens during deposition?
    Materials are dropped in a new location
    Rocks turn into soil
    Materials break apart
    Materials move quickly
  • A scientist pours water into a crack in a rock. The water freezes overnight. The next day the crack is larger. What caused the change?
    The rock melted
    The water evaporated
    The rock moved downhill
    The water expanded when it froze
  • Wind blowing sand across a desert and forming sand dunes is an example of:
    Erosion and deposition
    freezing
    weathering
    flooding
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