Slow Changes
A glacier, a large moving sheet of ice, makes changes to the land by:
A) earthquake
B) erosion
C) weathering
B) erosion
As glaciers slowly move, they take away rocks and soil.
Which of these is a fast change?
A) erosion of the beaches
B) earthquakes
C) weathering of desert rocks
B) earthquakes
Scientists can learn to prevent or slow down erosion by:
A) studying how plants grow
B) studying how animals find food
C) studying rocks and water
C) studying rocks and water
Water that overflows or soaks an area
A) flood B) volcano C) a river
A) flood
After weathering, the pointy tip of a mountain will be:
A) still pointy
B) it will become a volcano
C) more round and less pointy
C) more round and less pointy
How do cracks get bigger in rock?
A) Water in the cracks freeze into ice and make the cracks bigger
B) Wind makes the cracks smaller
C) Floods cover up rock and make cracks smaller
A) Water in the cracks freeze into ice and make the cracks bigger
What is a landslide?
A) rocks and soil that slide down a hill
B) mud that dries and doesn't move
A) rocks and soil that slide down a hill
One way a farmer can prevent soil erosion is by:
A) using sandbags
B) planting tall trees to block the wind and hold the soil in place
C) build a windmill
B) planting tall trees to block the wind and hold the soil in place
A sudden shaking of the ground
A) earthquake B) erosion C) flood
A) earthquake
True or False, flood water can carry soil and mud away
A) True B) False
A) True
How does a hole develop in rock over time?
A) Someone drills a whole
B) Wind and water fill in the hole
C) Wind and water, over time, cause weathering of the rock
C) Wind and water, over time, cause weathering of the rock
Fences on a hill can help prevent or slow down:
A) Floods
B) landslides
C) hurricanes
B) landslides
What material should people use to build a seawall?
A) Wood
B) concrete
C) sand
B) concrete
An opening where lava erupts
A) hurricane B) earthquake C) volcano
C) volcano
Erosion can re-shape deserts, True or False?
A) True B) False
A) True
Tree roots can slowly change the land by:
A) Roots can break apart rock as they grow deeper in the soil
B) Roots suck up all the water and the rocks break
C) The roots shrink the rocks and make them smaller
A) Roots can break apart rock as they grow deeper in the soil
What is so powerful about hurricanes that they change the surface quickly?
A) powerful wind and pouring rain
B) flooding caused by powerful waves by the sea
C) All of these choices
C) All of these choices
What should people do to prevent a hurricane from damaging their homes?
A) make sure homes are built away from the sea
B) open all windows during a hurricane
C) Plant lots of bushes around your yard
A) make sure homes are built away from the sea
A row of trees used to block the wind
A) weathering B) windbreak C) landslide
B) windbreak
The Grand Canyon was formed when wind and hurricanes carried away the rock.
A) True B) False
B) False
Flowing river water slowly eroded away the rock and soil and made the canyon deeper.
How does erosion ruin beaches?
A) The waves add more sand to the beach
B) The wind is not strong enough to affect the sand
C) Wind carries sand away from the beach.
C) Wind carries sand away from the beach.
Volcanos cannot change the land right away
True or False?
A) True
B) False
B) False
Volcanos change the surface of the land right away as the lava cools.
What are ways to stop flood waters from getting into your home?
A) a fence and a trees
B) sandbags and a seawall
C) building wooden blocks at the end of your street
B) sandbags and a seawall
A process that breaks rock into smaller pieces
A) weathering B) flood C) hurricane
A) weathering
Volcanos can cover the surface with ash, dust, and rocks
A) True B) False
A) True