When glaciers retreat they leave behind huge blocks of ice that melt to form kettle lakes. Why is it important for sediment to build up around the ice blocks in order for the lakes to form?
What is without the sediment, the water would not stay contained?
100
This force is mainly responsible for the erosion and deposition that happens in landslides, rockfalls, and mudslides.
What is gravity?
100
This is what happens to rock when it is weathered.
What is broken down into smaller pieces?
100
Three funnels are filled with fine sand, coarse sand, and gravel. List the order that water will pass through each from fastest to slowest.
What is Pebbles, coarse sand, and fine sand?
100
This is the term to identify the whole area of land that is drained by a river system.
What is a watershed?
200
A glacier is a large mass of moving ice and need these two conditions to form.
What are the weather must be below freezing and more snow must fall than melt?
200
Lake Pepin is a wide part of the Mississippi River. The river flows from Red Wing (West) toward Wabash (East). Why is the river not as wide near Red Wing?
What is water slows as it enters Lake Pepin and sediment is deposited there?
200
This term describes the movement of soil from one place to another.
What is erosion?
200
A student makes a stream table using a pan and some sand. Which would cause more erosion when poured into the pan: a bucket of water or a cup of water.
What is the bucket of water would cause more erosion than the cup of water?
200
This term represents a stream or river that flows into a larger river.
What is a tributary?
300
Many of Minnesota's lakes are Kettle Lakes, describe how they are formed.
What is glaciers left chunks of ice which melted to form lakes?
300
Lake Byllesby was created because of a hydroelectric dam on the East end of the lake. The lake is part of the Cannon River which flows from West to East. Which part of the lake do you expect more sediment to be deposited?
What is at the west (left) side of the lake?
300
Canyons, caverns, channels, and valleys all form because of erosion by water. This landform is mainly formed because of erosion by groundwater.
What is an underground cavern?
300
A stream that cannont carry all of its sediment forms an alluvial fan. This is the reason why the stream loses its sediment and forms an alluvial fan.
What is the speed of the water is too slow?
300
This type of soil can retain the greatest amount of water and is the measure of amount of open spaces, or pores, between the particles of rock.
What is soil that has high Porosity?
400
Which of these is a destructive process that helps to break down landforms in nature: weathering, deposition, volcanic eruption, or uplift of the Earth's crust.
What is weathering?
400
See Glacial Map of MN. Which area or areas of show evidence of flattening because of continental glaciers?
What are both area's A and B?
400
This causes granite to break down into soil over time.
What is rain and wind?
400
A river starts in steep mountains, enters a flatter area of land, meanders across a plain and then enters the ocean. As the water enters the delta, this is why sand is deposited there.
What is river water slows down as it enters the ocean?
400
Order the following from smallest to largest: rivers, river systems, tributaries.
What is tributaries, rivers, river systems?
500
A glacier pushes sediment forward, then deposits it as the glacier melts to form this terrain feature.
What is a morraine?
500
Which of these is a constructive process that helps to build up landforms in nature: weathering, erosion, deposition, subduction.
What is deposition?
500
The lower the pH value of a substance, the more acidic that substance is. Rain in City A has a pH of 3, rain in City B has a pH of 5, and rain in City C has a pH of 4. If each city had about the same amount of rain, which city would have the most chemical erosion?
What is City A?
500
If Miami has an average of 3 inches of rainfall in March and Gainesville has an average of 5 inches of rainfall in March, which city will have more erosion.
What is Gainesville?
500
This term describes the upper surface of the groundwater, or in other words, the upper level of saturated ground.