Do Now:

Take out Handout and Open ESRT.

HW- Castlelearning Due Friday morning.

Lab Due tomorrow.Quiz FRIDAY!!!

STUDY

1.What size particles can a river carry if it has a velocity of 50cm/sec?

2.What is the size 3.range for Pebbles

4.What size particle is be deposited first by a river?

Objective: Describe the

Erosional-Depositional Process in RIVERS.

http://www.youtube.com/watch?v=gWew8lWYhtIRiver Wild Trailer

Which Slide is FASTER?Why?

Channel Shape

http://www.youtube.com/watch?v=xeu_WhgD3LUSki Racing

A CD

E

B

In a straight channel, water flows fastest at letter….

HW-

Why are all the cars crashing on the right side of the picture?

Watch what happens to the Race Cars, Why does that happen ??

http://www.youtube.com/watch?v=QdCDkfEKkUI

Erosion and Depositionin a MEANDERING River

Spiral Waterslide: Watch how the rider moves on the slide…

• http://www.youtube.com/watch?v=PQxs0u7FV_s

Meandering River Bird’s Eye view

Rivers want to go STRAIGHT..http://www.youtube.com/watch?v=wZxCwLNRGhs Car driving along..

Why are the sides of the slide higher in some spots?

• Where is the Sand being Deposited?

http://www.youtube.com/watch?v=ubP_-ptVDbY

• Stream Table Demonstration

Draw Cross-Section of Stream Bed

Draw Cross-Section of Stream Bed

Handouts:

http://www.wiley.com/college/strahler/0471480533/animations/ch17_animations/animation1.html

Meanders and VelocityA

A’ B’

B

C’

C

At which locations is the river flowing FASTEST???

Draw the riverbed profile between

A-A’B-B’C-C’

Begin Handout:

Answer worksheet page 2Erosion____Deepest ____Fastest _____________ Curve------------------------Deposition_____Shallowest ______Slowest ________________Curve

Erosion ______Deposition ____Fast _______Slow _______Shallow ______Deep _______Inside Curve ____Outside Curve ___

HOMEWORK

Castlelearning – FridayQUIZ FRIDAY