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1. Objective (READ)
SWBAT identify the causes of
weathering.
- Go in order, step 1,
step 2, step 3
- directions are in
parentheses
2. Question of the Day.
(TURN OBJECTIVE INTO A QUESTION)
3. Warm-up (ANSWER)
A. Data showing the number of students who live in
an apartment is an example of which of the
Geographer’s Tools.
B.
How could a police officer use GPS?
Warm-up Page
Date
Question of the
Day
Warm-up
9/2
What are the
causes of
weathering?
1. Data collected
about people =
demographics
2. Could use it to
log the scene of a
crime so he can
return in the future
Table of Contents
Date
Title
Lesson #
**Thinking Like a Geographer**
8/26
5 Themes of Geography
2
8/27
The 5 A’s
3
8/31
Geographer’s Tools
4
9/2
Weathering
5
1. Make a new page called “WEATHERING”.
2. Label it page 5.
External Processes
Erosion
Weathering
• Weathering - changing rocks, land, and
objects over time
• 2 types: Mechanical Weathering and
Chemical Weathering
COPY
WHAT’S IN
THE BOX
Mechanical weathering – forces break
rocks into smaller pieces by forcing them
apart.
COPY
WHAT’S IN
THE BOX
Causes of Mechanical Weathering
1. Root wedging – roots
break up rocks
2. Frost Wedging - ice
breaks up rocks
3. Thermal expansion –
heat causes rocks to
expand and break
COPY
WHAT’S IN
THE BOX
Effects of Mechanical Weathering
Conclusion
• How is mechanical weathering like a
hammer?
• Directions: Copy the sentence above and
write one complete sentence responding
to it in your notebook.
Chemical Weathering
• Chemical
weathering - when
something "eats
away" at a rock
instead of breaking
it apart.
• Requires a
chemical change in
the rocks
COPY
WHAT’S IN
THE BOX
Causes of Chemical Weathering
Directions:
1. Acid Rain
- Copy the headline and each cause
Regions Sensitive to Acid Rain
Orso University
Challenge
Question: Why do
Houston, Chicago,
and Los Angeles
have such low
levels of acid rain?
Causes of Chemical Weathering
2. Water – creates a
chemical reaction in
certain objects
3. Chemicals –
resulting from
pollution or internal
processes
Foaming pollution on rocks.
Effects of Chemical Weathering
At PH1, this New Zealand
lake is pure hydrochloric acid
Naked trees
Rust
Analysis
- Create a weathering wonderland.
-
-
Sketch a landscape that includes examples
of weathering resulting from each of the 6
causes. (3 mechanical, 3 chemical)
Label each cause
Directions/Requirements
- Need 6 pictures (3
mechanical weathering
and 3 chemical
weathering)
- Need a caption
explaining each cause
- Need a title
Rocks that have split apart
due to thermal expansion.
Weathering Wonderland Conclusion
1. On your Wonderland, draw a big M next to
each example of mechanical weathering
and draw a big C next to each example of
chemical weathering.
2. You are the mayor of a new city called
Weathering Wonderland.
- EXPLAIN three ways that weathering
harms your city.
Weathering Assignment – Option 2
•
You are the mayor of a new city called Weathering Wonderland. Your local news
station is interviewing you about the problems your city has due to weathering. You
will get more money from the federal government if you can convince the audience
that your town is in trouble. (Remember a Volcano and Earthquake are internal
processes)
Directions:
- Select either option 1 or option 2 below. Either option will receive full credit.
- Complete this in your notebook on your weathering page.
Option 1 – Write a paragraph explaining the problems you have during a typical day in
your city that are caused by weathering.
a. You must include at least 5 examples of weathering and the problems they cause
in your town
b. Include an explanation of why each example is a problem.
Option 2 – Draw a picture (or map) of your town’s problems related to weathering.
a. You must include at least 5 example of weathering and the problems they cause in
your town.
b. Include evidence showing why each example is a problem.
c. Label each example so they are easy for me to identify.
Closure
1. Answer the Question of the Day.