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changes in landform over time

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