Young Rivers

Why is white water rafting done in young rivers? 

Have you ever been on a river like this one ? 

Would you like to white water raft someday? 

Rivers and Erosion 2012

Watch the two videos and when you have finished watching the videos please post.
3 facts from the videos 
2 things you found interesting 
1 question about the content 

River Video 1

River Video Grand Canyon

Water as an erosional force

Next week we will begin to learn about how water acts as an erosional force. 

Here are some vocabulary words from the next section.

What do you think they mean ? 

runoff

channel 


permeable 


aquifer 


geyser  

Salem Trip

Now that you have been to Salem please let me what part of the trip stood out most for you ? 

What did you like the best ? 

Caves 2012

Most of Zetland is on trip today to Salem today , however what would a day be like with out a science blog. Please watch the video link and let me know what you think of the lehman 
Caves video

Salem Tomorrow

What do you think you will like the best about the trip to Salem ? 

Science Salem I

What can scientist learn about weathering and climate from gravestones?

Please do some internet research to answer this question 

weathering acids

What do you think caused the weathering on these gravestones? 

Earthquake

What did you see or hear during the earthquake last night? 

Please share your story. 

How often do earthquakes occur in NewEngland?

What was the rating on the one last night? 

Changing Earth

Please give examples of how the surface of the Earth changes slowly and abruptly ( fast). 
Your response should included specific examples of erosional forces that you have been learning about.  Also compare and contrast chemical and mechanical weathering to erosional forces. 

Grasses and Wind

One picture above shows a wheat field one shows praire grass. 
Do some internet research, which field would more likely be affected by erosion?
Why would one field see more erosion caused by wind, gravity, or water? 

Wind and Erosion

This is a sand fence on Nantucket Island Mass. What does this fence tell you about wind erosion and the dunes? Why do you think there is more sand on one side of the fence? Why do you think the fence was put there? Feel free to do some web research to answer these question. Also post any additional questions that this picture brings to you.  

racing rocks

You may have notice animal tracks in the sand but, have you ever seen boulder tracks? If you ever go to the racetrack in Death Valley this is exactly what you will see. Rocks at the race track seem to move without any help at all. 

1. No one has ever seen a rock move at the Race track. What evidence do you have that these rocks are 

moving with out human interference?

2.  Develop and post a theory that explains the mysterious movements at the Racetrack. 

Please be : safe polite respectful productive and responsible with your post.

Glaciers and Erosion

Describe two ways in which a glacier can cause erosion.

Till and outwash are glacial deposits. Explain how till and outwash are different.

Going Beyond :

What do you think the map above represents? What do you think the color key means? 

More about Glaciers

We have been learning about glaciers.
Please click the link below watch the video and take the quiz.
In your post review the video and tell me what you already knew and what you learned about glaciers. 
glacier video and quiz link

Ice Ages

Please watch the video links below and in your response
Give:
 Three Facts about an Ice Age
 Two things you found interesting in the videos
 One question that you have about Ice Ages

Ice Age video 1

Ice Age Video 2

Glaciers Types

Figure 1 

Figure 2 

What type of Glacier do you think is represented in figure 1 ? 

What type of Glacier do you think resulted in the formation in figure 2 ? 

Where in the world can you find continental and valley glaciers? 

How do you think the last ice age affected ocean levels? 

Hint: Look Chapter 3 sec 2 Changing Surface of the Earth 

Glaciers

What do you know about glaciers? Where in the world would you find glaciers ?

More information on link below 

GLACIER LINK