Weathering
What is the biggest difference between mechanical and chemical weathering?
Chemical changes the composition of the material
Which process moves weathered material and transports it to a new location?
Erosion
What is the force that results in mass movements by pulling material downhill?
gravity
Rain, snow, and hail are all examples of what step of the water cycle?
precipitation
Water that flows downslope until it can accumulate, evaporate, or infiltrate is known as...
run-off
If water freezes in the sidewalk and breaks it apart, what is the process of mechanical weathering it underwent?
frost wedging
Which process causes the material to drop to the ground or the bottom of a body of water?
deposition
A landslide that occurs in areas with abundant snow are...
avalanches
Clouds form during what step of the water cycle?
Condensation
How does porosity affect the ability of materials to hold water?
high porosity = hold more water
chemical weathering
Would a desert be more likely to experience wind or water erosion?
wind
How does water influence the occurrence of slumps?
reduces friction
True/false: The water on Earth now is the same water that was there when the dinosaurs roamed, because the water cycle is never-ending.
True
Is an aquifer a form of accumulation, ground water, or surface water?
groundwater
In the Caribbean Islands, the climate is warm, there are numerous plants, and rainfall is frequent. What kind of weathering is more likely to occur here, mechanical or chemical?
chemical weathering
What is one example of how humans contribute to erosion?
planting a garden, developing a new athletic field, and building a highway.
True/False: During the last ice age, the entire Earth was covered in ice?
False
Leaves and plants release moisture during what step of the water cycle?
transpiration
If a large river moves fast it has a high ability to carry material. This is known as the stream's...
carrying capacity
What kind of weathering would most likely occur in northern Canada, mechanical or chemical?
What is one means of erosion?
water, wind, gravity, glaciers, living things
The Himalayan Mountains are located in Asia, near the equator. Some glaciers form high in these mountains. What kind of glaciers would you expect to find here? (valley or continental)
valley glaciers
Water going through the ground and becoming groundwater is called...
infiltration
Material A has a permeability of 75% and Material B has a permeability of 20%. Which would be a better material to create a barrier for a lake with (you DON’T want water to travel through it)?
Material B