WEEK 35 CCA REVIEW
WEEK 35 CCA REVIEW
What is the definition of abrasion? The wearing down of rocks by
wind, water, and other rocks.
What is the definition of erosion? When natural forces move
weathered rock from one location to another
What is the definition of deposition? The laying down of
sediment in a new location.
How does the speed of a river/stream effect deposition of rock?
As the river slows down, larger particles of rock will deposit
first.
What effect does abrasion have on the size and shape of a
rock?It becomes smaller and smoother around the edges.
What is the difference between primary and secondary
succession?
After a disruption to an ecosystem, one species of plants of
animals replaces another species until a climax community is
reached. 2 types- primary starts with no soil: volcano eruption,
landslideSecondary starts with soil: farmland, vacant lot.What is a
pioneer species? Name 2 examplesThe first species that grow back in
primary succession because they dont need soil. Lichen and Moss
What is a climax community? A stable community that no longer
goes through major ecological change
What 2 things do Astro-biologists look for when deciding if a
place beyond earth holds life? Liquid water and carbon
What is an artificial satellite? It is built by humans and
orbits another object.Why is deep space travel by mankind so
difficult? Not enough tech to shield our spacecraft from radiation,
cant carry enough water to drink and produce oxygen for long deep
space trips.
What is the difference between a catastrophic event and a
disaster?
A CE is something that happens that affects a large number of
people and does a great deal of damage to the environment and
manmade structuresA disaster is a state of extreme ruin and
misfortune
How are earthquakes caused? By the movement of tectonic
platesHow are volcanic eruptions caused? Magma rises through cracks
or weaknesses in the Earth's crust. When this pressure is released,
eg as a result of plate movement, magma explodes to the surface
causing a volcanic eruption.
How are tsunamis caused? A tsunami is a series of enormous waves
created by an underwater disturbance usually associated with
earthquakes occurring below or near the ocean
What is the definition of permeability? Tiny air spaces in
between particles of rock that allow water to pass through. The
bigger the spaces = the more permeability
What is the difference between groundwater and surface water?
Groundwater- rain that soaks into the soil, pores of rocks and
cracks in the earths surfaceSurface water- the water that fills
lakes and rivers
What is difference between a watershed, divide, and a
riffle?Watershed- an area of the land where all runoff drains to
the same body of water (stream, river, ocean, etc.)Divide- A ridge
or other topographic feature that separates two adjacent drainage
basins. It is an imaginary line that separates two different
directions of surface water flow.Riffle- a shallow part of a stream
that flows over uneven ground- oxygenates the water
A Divide
Where is most of the freshwater stored on planet Earth?
Glaciers
Give examples of how human actions damage groundwater
supplyPollution, large amounts of fertilizer, drilling for water
wells
What are the 3 main types of space probes used to obtain
information about our solar system?
Flyby, lander, orbiter
Flyby Orbiter Lander
