Types of weathering
Acid rain usually occurs when burning fossil fuels which is an example of
Chemical Weathering!
This provides the energy for rivers and glaciers
sun
The break down of rocks
Weathering
wind and water can carry sand and small pieces of rock to new locations. true or false
true
Small pieces that break off of rocks
What are sediments?
Decomposition of rocks into different substances
Chemical Weathering!
This is the downhill movement of dry soil due to gravity.
What are landslides?
These are the physical features on the Earth’s surface. (Examples: mountains and valleys)
What are landforms?
When rainwater seeps into cracks in rocks and __________, it expands and causes the rock to split apart.
freezes
gigantic formations of ice that do not completely melt over the course of a year
what is a glacier?
Disintegration of rocks into smaller pieces of the same stuff
mechanical weathering!
Huge sheets of ice that move slowly over land.
What are glaciers?
This is the process of dropping sediment in a new location.
What is deposition?
fast flowing rivers can pick up and carry rocks (far/short) distances
what is far?
Large piles of sediment that are leftover from glaciers when they melt.
What are moraines?
Water can weather rock by: A. eroding soil B. by freezing and melting
What is freezing and melting?
This occurs when soil moves slowly downhill due to gravity.
What is creep?
The process by which weathered rock is picked up and moved to a new place
what is erosion
Weathering over long periods of time breaks rock into ____________ pieces. (larger or smaller)
smaller
a growing pile of deposited sediment at the mouth of a river
what is a delta?
Nonliving, solid material that are formed in nature and made of crystals.
What are minerals?
this type of erosion is common in a hot dry climate
what is wind erosion?
the sudden movement of rocks and soil down the side of a hill because of gravity and rain
what is a landslide
All of the following are forces that change landforms EXCEPT: a. wind, b. moving water, c. glaciers, c. physical features
c. physical features
Large piles of sediment that are leftover from glaciers when they melt
What are moraines?