Goggle Earth Stream Lab

Name______Class____

Goggle Earth Stream Lab

Stream Lab program, which will open up all of the placemarks. Made certain that each of the placemarks are checked as well.

1.  Go the Placemark A, the dam separating the water of the Mississippi River to the right from the Atchafalaya River to the left. What is the depth of the river on the left (west) side of the dam?______ft. What is the depth of the water on the right (east) side of the dam?______

2.  What is the purpose of the Dam?

3.  Find Placemark B, Mouth of the Atchafalaya River. What is the elevation?____ ft. What feature do you see at the mouth?______

4.  Go to the tools and click on the ruler. Use the ruler to determine the distance from the dam to the Mouth?______miles

5.  What is the slope of the Atchafalaya River?______

6.  The ruler determined the straight line distance, but the river has curves called ______.

7.  If the distance along each curve was calculated, what would that do to the calculation of the slope, increase or decrease it?______

8.  Determine the distance from the dam to the mouth of the Mississippi River______miles.

9.  Determine the slope of the Mississippi River______

10.  What does the slope tell you about the need for a dam between the Atchafalaya and the Mississippi Rivers?

Part 2 go to Niagara Falls

1.  Which way is the Niagara River flowing______

2.  What is the height of the waterfall? Show your work

3.  Is the Niagara river an old, mature , young or rejuvenated river?______

4.  Go to the end of the Niagara Gorge. Two formations are most responsible for Niagara Falls, the youngest rock is Lockport Dolostone (a limestone and dolomite layer) and below that layer is the Rochester formation, composed of mostly shale. Label these two layers on the diagram to the right. Which is the capstone?

5.  In which compass direction is the Falls migrating because of erosion?

6.  How long is the Niagara Gorge? (Use the path measuring tool)

7.  The Niagara River began to erode after the last Ice Age, so it is approximately 10,000 years old. What is the rate of headward erosion of the falls. (give your answer in cm/year)

Part 3 Dixon, Wyoming

1.  Which way is the Little Snake river flowing?______

2.  Is the town of Dixon located on the floodplain or on bedrock?______

3.  Is the Dixon airstrip located on the floodplain or on bedrock?______

4.  What sort of feature is found at Dixon 3?______

5.  Is the Little Snake river old, mature , young, or rejuvenated?______

6.  How do you know the answer to the above question?

Part 4: Green River

1.  Ar e there meanders present?______

2.  Is there a flood plain present?______

3.  Is the Green River old, mature , young, or rejuvenated?______

4.  How do you know the answer to the above question?