Matching
Chemicals in the air, water, or land cause the rocks to break down.
What is chemical weathering.
Fast moving water carries ______________sediments
What is more.
Some rivers are as wide as lakes. When you see one, how can you tell it’s a river, and not a lake?
What is you can check if the water flows. A river has water that flows.
What causes the greatest erosion effect on our beaches?
a. waves
b. gravity
c. wind
d. glaciers
What is a. waves.
What is a canyon.
The breaking down of rocks into small pieces.
What is weathering.
The process by which pieces of rocks are_________
What is carried away.
Which way does the river flow? How do you know? (reference mountain/river picture)
A river flows from high to low. It starts in mountains and ends at the ocean.
Muddy water being carried away by a fast-moving river is an example of __________.
a. landslide
b. weathering
c. erosion
d. a nice place to swim
What is c. erosion.
very tiny pieces of rock, such as what you often see on the ground at a beach
What is sand.
Streams only move in a ____________ direction.
What is downhill.
Imagine a dump truck dumped a big mound of dirt in the park. Will the dirt stay in that mound forever? Why or why not?
The mound of dirt will not stay there forever. It will be carried away by rain. Maybe it will get spread around the land. (OR: Maybe it will get pushed to the ocean by a river.)
Which of these played a huge part in creating the Grand Canyon?
a. wind
b. water
c. earthquakes
d. air
What is b. water.
something that happens again and again and again in a way that can be predicted
What is pattern.
The breaking down rock or land by hitting them or anything that makes them split apart.
What is physical weathering.
What color will the sand be at this beach? Why do you think that?
The sand will be red because the rocks in the mountain are red. The sand comes from those rocks crashing into each other.
Which of these can cause erosion?
a. water
b. ice
c. wind
d. all of the above
What is d. all of the above.
a high area of land with steep sides
What is mountain.
The movement of weathered rock and soil from one place to another.
What is erosion.
Fast moving water causes ________________.
What is more erosion
Why is there sand at the beach? Draw a picture and use words.
There is sand at the beach because a river carries it there. Near mountains, rocks tumble into the river and crash into each other. They break into smaller and smaller pieces. Sand is those tiny pieces of rock.
Wind, rain, and ice are a few causes for a rock to break. The breaking down of rocks into small pieces is called _____________.
a. erosion
b. weathering
c. landslide
d. flashflood
What is b. weathering.
when tiny bits of rock are moved from one place to another
What is erosion.