Mechanical Weathering
Chemical Weathering
Soil
Agents of Erosion
Wave, Wind and Ice Erosion
100

What is mechanical weathering?

breaking rocks into smaller pieces

100

Which is stronger, carbonic acid or acid rain?

acid rain
100

What is the biggest type of particle: clay, silt, sand?

sand

100

What is deposition?

water, wind, or ice drops sediments off in a new location

100

How does a sandbar affect shipping commerce?

Ships can get stranded/run aground

200

What is exfoliation?

sheets of rock peeling away like layers in an onion

200

A stalagmite is on what part of a cave?

the ground (like mites on the ground)

200

What do we call the mixture of sand, silt, and clay?

loam

200

True or False: Heavier sediment drops after lighter sediment.

False

200

What is plucking?

when a glacier pulls out a piece of bedrock and carries it along

300

Rocks that have been abraded (abrasion) a lot tend to have what type of edges?

rounded and smooth edges

300
How do lichens chemically weather a rock?

They excrete acid on the rock, which dissolve it

300

Define texture in terms of soil.

texture is the amount of each kind of particle in a soil sample

300

Sediment being deposited on a delta has what shape?

triangle

300

How is a dust storm different from a sandstorm?

Dust storms pick up silt and clay and can be higher in the air, sandstorms pick up sand and are lower to the ground

400

What is pressure release?

mechanical weathering that creates cracks and breaks in rock

400

What is it called when a stalagmite and a stalactite connect and grow together?

a column

400

What is the first horizon called (on top)?

O horizon

400

A stream's load includes which two types of loads?

dissolved load and suspended load

400

Define a moraine.

the deposited soil and rock a glacier has picked up on the way down a mountain

500

What is a hoodoo?

an unusual rock formation where the top of the rock is harder and wears away slower than the bottom

500

What are people who explore caves called?

spelunkers

500

What is in the C horizon?

larger weathered fragments of bedrock, clay and sand, little organic material, minerals

500

In this mass movement, water combines with soil and produces a heavy and unstable area that slides downhill.

Mudflow

500

For a glacier to be receding, what has to be happening? 

it melts faster than new snow falls