Weathering
What is weathering?
The breaking down of rock into smaller pieces.
What is erosion?
Erosion is the process by which sediment and other materials are moved from one place to another.
What is the definition of deposition?
Dropping sediment in a new place.
Define constructive forces as they relate to Earth's surface.
Building up of landforms
What is the name of your Science teacher?
Daniela
What are the two types of weathering?
mechanical and chemical
What are the 2 different types of erosion?
Erosion by _____, ______, ______, and ________.
Wind, water (ice) other possible answers: gravity, living organisms.
Who is Diana's favorite Harry Potter character?
Hermione
Define Destructive Forces as they relate to Earth's surface.
Destruction or breaking down of landforms
Who is AJ's favorite Harry Potter character?
Dobby
Name an agent of mechanical weathering that splits rock apart.
Ice Wedging or Root Wedging
Erosion carries sediment to new places. What is sediment?
Small pieces of rock.
What is one landform created by wind deposition?
Sand dunes.
Erosion is a _______ force.
destructive
What is the name of a hollow depression in which drainage collects? (sinkhole, canyon, v-shaped valley)
sinkhole
How can roots be a cause of chemical weathering?
Plant roots release carbonic acid that break down rock over time.
Deep valleys can form from this feature moving across and eroding Earth's surface.
Glacier
What does deposition do to the environment?
It builds up new landforms from the sediment that is relocated there.
Constructive
What is a solvent?
a substance that dissolves another
This is the major agent that has shaped Earth' surface through weathering.
What 2 things does erosion cause streams to do?
They cause streams to widen and deepen
A river flowing down a slope will deposit sediment: At the top, middle or bottom of the hill.
Bottom of the Hill
Weathering is a ______ force
Destructive
Which weathering process uses a solvent to wear things down? (moving air, moving water, or freezing ice)
moving water (see lesson 2.6 if need further review)
How are weathering and erosion similar?
both break down soil and help them turn into soil
The steeper the gradient the (more or less) destructive a river will be.
More
What is it called when two tectonic plates start to push into each other and rise up to form mountains or sink under and create valleys? (volcanic eruption, deposition, or crustal deformation)
crustal deformation
This landform is constructive. It builds up landmasses and causes the river to branch out at the mouth of a river. It empties into a lake or ocean.
river delta