Download Slide 1 - Humble ISD

Forces of Change
By: Peyton Rollins and Emily Weed
Volcanoes
• An opening, or rupture, in a planet’s
surface or crust, which allows hot magma,
ash, and gases to escape from below the
surface.
By: Peyton Rollins
Lo Ihi, Hawaii
Environmental changes: Volcano erupts, lava flows, then
hardens and becomes
rock.
By: Peyton Rollins
Kilauea, Hawaii
Environmental changes:
Lava flows into the ocean
and harden into molten
rock.
By: Peyton Rollins
Earthquakes
• An earthquake is the result of a sudden
release of energy in the Earth’s crust that
creates seismic waves.
By: Emily Weed
Kobe, Japan
Environmental changes:
the earthquake
destroyed major roads
and bridges which made
transportation difficult.
By: Emily Weed
Sichuan, China
Environmental changes: A lot of the buildings were demolished
which left debris all over the place.
By: Emily Weed
Water erosion
• Erosion is the removal of solids (sediment,
soil, and other particles) in the natural
environment. It usually occurs due to
transport by wind, water, or ice; by downslope creep of soil and other material
under the force of gravity.
Grand Canyon, Wyoming
Environmental change:
Wind, water and ice form
canyons.
By: Peyton Rollins
Bryce Canyon, Utah
Environmental change: Due to wind, water and ice erosion. These canyons were formed.
By: Peyton Rollins
Wind Erosion
• The erosion, transportation, and
deposition of topsoil by the wind
North Central Iowa
Environmental Changes: The wind picks
up the topsoil off the ground and blows
it away which decreases the crop’s
nutrients. This causes many crops to
die.
By: Emily
Weed
Northern Germany
Environmental changes: The crops have lost
their nutrients because the wind blew away their
topsoil.
By: Emily
Weed
Physical weathering
• Involves the breakdown of rocks and soil
through direct contact with atmospheric
conditions, such as heat, water, ice, and
pressure
By: Peyton Rollins
Shippensburg, Pennsylvania
Environmental change: This boulder went through physical weathering as the
growing tree roots enlarged the fracture.
By: Peyton Rollins
Chemical Weathering
• The weathering of a rock surface through
chemical processes such as oxidation,
solution, and hydrolysis.
By: Emily Weed
Alabama Hills,CA
Environmental Changes: The rock has
changed different colors due to chemical
weatherings.
By: Emily
Weed
Glacier Erosion
• The movement of soil or rock from one
point to another by the action of the
moving ice of a glacier.
Alaska
Environmental Changes: It causes the land to
change shape.
Switzerland
Environmental Changes: It makes the land
become more flat and smooth.