Land Forms Power Point Review
Interactive Slideshow
So far in this unit, you have learned that there are two forces at work in nature: Constructive (to build, create) and Destructive (to tear down,
destroy). Landforms are constantly changing as a result of these forces. What causes the changes involve the three processes of Weathering (to
break down), Erosion (to move or transport away) and Deposition (to deposit, lay down, or settle). Weathering and erosion are destructive
processes, while deposition is a constructive process.
There are two kinds of weathering: Physical Weathering and Chemical Weathering. Agents of physical weathering break down rock and other
surfaces into smaller pieces and include temperature change, wind, ice (ice wedging) , glaciers, gravity, wave action, and water (running water).
Water (dissolves things) is the main agent of chemical weathering. Acid in rain would be a good example of chemical weathering.
In chemical weathering, a reaction takes place and a new substance forms.
Many of the same agents of weathering are at work in erosion, as well. Gravity-and with enough speed and energy-water (running water),
wind, wave action, and glaciers, all serve to move or transport broken down pieces to a different location. If speed and energy decrease, then
deposition (settling down) of the eroded materials takes place.
To help you with the upcoming test on W, E, & D, and Landforms, I have provided an interactive power point slideshow to help you practice
identifying the forces, processes and agents of W, E, & D. Here’s how to begin:
Step 1: Open the powe point/slideshow.
Step 2: From the tabs across the top, select slideshow.
Step 3: On the top left, click on “From the Beginning” to see the slide containing the title of the show
Step 4: To advance to the first question/slide, click the mouse within the title slide.
Step 4: Using your power point check off sheet, decide which force(s), process(s), and agent(s) are shown.
You may choose as many boxes as you think apply to the situation.
Step 5: Click your mouse within the frame to see the answers pop up.
Step 6: Click within the frame to advance to the next slide.
Landform Review Check Off Sheet
Processes:
Forces:
* Situations
#1 A rock heats in
the sun & cracks
#2 A slowing
stream drops its
sediment
#3 Blown sand piles
up along a tree line
#4 A limestone cave
is dissolved by H20
#5 A beach shrinks
#6 A deep hole
forms at the base
of a waterfall
#7 Water seeps into
a cracked brick
ledge & breaks
away part of a brick
#8 Blowing sand
cuts a hole in a
Sandstone cliff
#9 The Colo. River
flows through the
Grand Canyon
#10 A strong wind
shifts the position
of a sand dune
#11 A town is
covered in mud
after a flooded river
returns to its banks
#12 A moving
glacier plows the
ground as it slides
down the valley
#13 A rock
freezes and
cracks
#14 Roots grow
into a cracked
rock & make the
crack bigger
Constructive
Check all the boxes that apply to each situation
Destructive
Weathering
Erosion
Deposition
Agents:
Agents:
Physical
Chemical
Water
Wind
Gravity
Glaciers
Waves
Water
Acids
O2
Processes:
Forces:
* Situations
#15 Soil is blown
from one field to
another
#16 Water eats
away at buried
limestone
#17 A glacier
leaves a trail of
debris as it slides
down a valley
#18 Wind blown
sand smooths a
boulder
#19 The backyard
of a beach house
becomes smaller
#20 A delta forms
at the mouth of
the Miss. River
#21 The rain
washes loose soil
from a flower bed
onto the lawn
#22 A river
removes soil from
the outside curve
and leaves debris
along the inside
corner
#23 Rocks
tumbling
downstream are
broken into
smaller pieces
#24
Constructive
Destructive
Weathering
Erosion
Deposition
Agents:
Agents:
Physical
Chemical
Water
Wind
Gravity
Glaciers
Waves
Water
Acids
O2
Land Forms Power Point Review
Interactive Slideshow
So far in this unit, you have learned that there are two forces at work in nature: Constructive (to build, create) and Destructive (to tear down,
destroy). Landforms are constantly changing as a result of these forces. What causes the changes involve the three processes of Weathering (to
break down), Erosion (to move or transport away) and Deposition (to deposit, lay down, or settle). Weathering and erosion are destructive
processes, while deposition is a constructive process.
There are two kinds of weathering: Physical Weathering and Chemical Weathering. Agents of physical weathering break down rock and other
surfaces into smaller pieces and include temperature change, wind, ice (ice wedging) , glaciers, gravity, wave action, and water (running water).
Water (dissolves things) is the main agent of chemical weathering. Acid in rain would be a good example of chemical weathering.
In chemical weathering, a reaction takes place and a new substance forms.
Many of the same agents of weathering are at work in erosion, as well. Gravity-and with enough speed and energy-water (running water),
wind, wave action, and glaciers, all serve to move or transport broken down pieces to a different location. If speed and energy decrease, then
deposition (settling down) of the eroded materials takes place.
To help you with the upcoming test on W, E, & D, and Landforms, I have provided an interactive power point slideshow to help you practice
identifying the forces, processes and agents of W, E, & D. Here’s how to begin:
Step 1: Open the powe point/slideshow.
Step 2: From the tabs across the top, select slideshow.
Step 3: On the top left, click on “From the Beginning” to see the slide containing the title of the show
Step 4: To advance to the first question/slide, click the mouse within the title slide.
Step 4: Using your power point check off sheet, decide which force(s), process(s), and agent(s) are shown.
You may choose as many boxes as you think apply to the situation.
Step 5: Click your mouse within the frame to see the answers pop up.
Step 6: Click within the frame to advance to the next slide.