· web viewname:_____ weathering and erosion unit ... appetizer 60% : date assigned
TRANSCRIPT
Name:____________________________________________
Weathering and Erosion UnitThis is a notebook grade
Appetizer 60%
Date Assigned
Possible Earned
Intro into Weathering 25
Mechanical Weathering Investigation 1 25
Chemical Weathering Investigation 1 25
Entrée
Vocabulary 15
Dessert 10%
Date Completed
Possible Earned
Focus Questions 10
Comments/ Grade: _______________________________Teacher Initials: ________________________________
Focus Questions Weathering and ErosionInvestigation
1 Claim:
Focus Question:What is
weathering?
__________________________________________________________________________________________________
Evidence:____________________________________________________________________________________________________________________________________________________________________________________________________
Investigation 2
Focus Question: How does
mechanical weathering break down
rock?
Claim:__________________________________________________________________________________________________
Evidence:____________________________________________________________________________________________________________________________________________________________________________________________________
Investigation 3
Focus Question:How does chemical
weathering break down
rock?
Claim:__________________________________________________________________________________________________
Evidence:____________________________________________________________________________________________________________________________________________________________________________________________________
Vocabulary
Mechanical Weathering
____________________________________________________________________________________________
Abrasion ____________________________________________________________________________________________
Ice Wedging ______________________________________________
______________________________________________
Chemical Weathering
____________________________________________________________________________________________
Oxidation ____________________________________________________________________________________________
Intro to Weathering Investigation 1State Science Standards MA 7. MS-ESS2-2 Construct an explanation based on evidence for how Earth surface has changed over scales that range from local to global in size
Focus Question What is weathering?
Prediction __________________________________________________________________________________________________________________________________________________________________________________________
DiscussionAnd
Academic Discourse
Rotate around the room and fill in the boxes below for each station.
Station 1: What do the pictures have in common?___________________________________________
___________________________________________
What do you think happened to make these rocks look this way?_________________________________________________________________________________________________________________________________
Station 2: What do the pictures have in common?______________________________________________________________________________________
What do you think happened to make these rocks look this way?_________________________________________________________________________________________________________________________________
Station 3: What do the pictures have in common?______________________________________________________________________________________
What do you think happened to make these rocks look this way?_________________________________________________________________________________________________________________________________
Station 4: What do the pictures have in common?______________________________________________________________________________________
What do you think happened as a result of the plant life in the pictures?_________________________________________________________________________________________________________________________________
Station 5: What do the pictures have in common?______________________________________________________________________________________
What do you think happened to make this metal
look this way?_________________________________________________________________________________________________________________________________
Station 6: What do the pictures have in common?______________________________________________________________________________________
What do you think happened to make these items look this way?_________________________________________________________________________________________________________________________________
Build Backgroun
d Knowledge
Mechanical Weathering Video Clip https://app.discoveryeducation.com/learn/videos/8ae9e2de-bfb5-4df7-a469-115e5eae3f9f?hasLocalHost=falseChemical Weathering Video Cliphttps://app.discoveryeducation.com/learn/videos/eafa229d-91a0-423f-8483-7cb6c10f3e09
1. Give an example of chemical weathering.
2. Give an example of mechanical weathering.
Mechanical Weathering Investigation 1State Science Standards MA 7. MS-ESS2-2 Construct an explanation based on evidence for how Earth surface has changed over scales that range from local to global in size
Focus Question How does mechanical weathering break down rock?
Prediction __________________________________________________________________________________________________________________________________________________________________________________________
Investigation
Question:Is it easier to weather a material with more or less surface area?
Hypothesis:__________________________________________________________________________________________________________________Directions:
1. _____ Take one whole alka seltzer tablet and drop it into beaker A
2. _____Time how long it takes for the alka seltzer tablet to completely dissolve
3. _____Record the time it took to dissolve in the table below4. _____Take another alka seltzer tablet and crush it and break it
up with your hands5. _____Pour all of the pieces of the tablet into beaker B6. _____Time how long it takes for the alka seltzer tablet to
completely dissolve7. _____Record the time it took to dissolve in the table below
Beaker A(whole tablet)
Beaker B(broken tablet)
Time
Which one dissolved quicker? The whole tablet or the broken tablet?_________________________________________________________Why?__________________________________________________________________________________________________________________
Build Backgroun
d Knowledge
Read pages 40-41 and fill in the two column notes
Mechanical Weathering
The type of weathering in which rock is _______________________________ into smaller pieces is called ______________________________.
These smaller pieces of rock have the _____________________________________ as the rock they came from.
Mechanical weathering works __________________.
Causes of Mechanical Weathering
List the causes of mechanical weathering:1. _________________________________________2. _________________________________________3. _________________________________________
4. _________________________________________5._________________________________________
The term abrasion refers to the ____________________________________________________________By rock particles carried by water, ice, wind, or gravity.
ActivityList the picture numbers that you put in each category below.
Animal Actions Weathering
Plant Actions Weathering
Abrasion Weathering
Freeze and Thawing Weathering Sort
Activity
Release of Pressure Weathering
Apply Solid rock Crushed rock
1. Assuming the rocks in the pictures above are both made of granite, which one will weather faster? Provide your claim and evidence below.
Claim:
_________________________________________________________
Evidence:
__________________________________________________________________________________________________________________
2. Look at the samples at the table labeled A and B.
Which of the two samples do you think has experienced more mechanical weathering? Provide your claim and evidence below.
Claim:
_________________________________________________________
Evidence:
__________________________________________________________________________________________________________________
3. In this scene, many agents of weathering are changing the rocks along the coastline. How many agents of weathering can you identify?
Types of weathering occurring in the picture:_____________________
__________________________________________________________________________________________________________________
Chemical Weathering Investigation 1
State Science Standards MA 7. MS-ESS2-2 Construct an explanation based on evidence for how Earth surface has changed over scales that range from local to global in size
Focus Question How does chemical weathering break down rock?
Prediction __________________________________________________________________________________________________________________________________________________________________________________________
Activity 1Inquiry
Materials:White chalk 4 Beakers 100 ml vinegar (acid)100 ml water Graduated cylinder Pennies
1. ____Place 50 ml of water in one of the beakers2. ____Place 50 ml of vinegar in the other beaker3. ____Place a piece of chalk in each of the beakers4. ____Observe and record your findings
Beaker with Water and Chalk Beaker with Vinegar and Chalk
1. ____Place 50 ml of water in one of the beakers2. ____Place 50 ml of vinegar in the other beaker3. ____Place a penny in each of the beakers4. ____Observe and record your findings
Beaker with Water and Penny Beaker with Vinegar and Penny
Which weathered faster in the acid, the penny or the chalk?_________________________________________________________Why? _________________________________________________________
Build Backgroun
Read pages 42-43 and fill in the two column notesChemical Chemical weathering is the process that
d Knowledge
Weathering __________________________________________________________________________________
Each rock is made up of one or more ______________________________.
Chemical weathering can produce _____________________________________ as it breaks down _________________________.
Chemical and ______________________________ often work together.
Water How does water weather rock?_________________________________________
Oxygen Iron combines with oxygen in the presence of water in a process called __________________________.
The product of oxidation is __________________.
Carbon Dioxide
When carbon dioxide dissolves in rainwater the result is a weak acid called what?_________________________________________
Carbonic acid easily weathers rocks such as______________________ and limestone.
Living Organisms
Plant roots can produce ________________________ that slowly dissolve rock around the roots.
Acid Rain True or False: Pollution causes acid rain_________________________________________
Acids mix with ________________________and fall as acid rain.
Apply 1. How does the inquiry activity we did today relate to the topic you read about?
__________________________________________________________________________________________________________________
_________________________________________________________
2. Classifying: classify each as chemical or mechanical weathering:a. _______________freezing and thawingb. _______________oxidationc. _______________dissolving chemicals into rockd. _______________abrasione. _______________acid rain
In our inquiry activity we noticed that certain types of materials will weather faster with acids then others.
Look at the pictures below of the two gravestones. One is made of marble and the other is made of granite. They are both about the same age.
Granite Marble
Which of the type of stone weathered faster, granite or marble?__________________________________________________________________________________________________________________Why?__________________________________________________________________________________________________________________
Extension Analyzing DataThe graph shows the rate of weathering for two identical pieces of limestone that weathered in different locations.
What does the x axis of the graph represent?_____________________________________
How much thickness did Stone A lose in 1000 years? How much thickness did Stone B lose in the same period?__________________________________________________________________________________________________________________
Which stone weathered at a faster rate?_________________________________________________________
Since the two identical pieces of limestone weathered at different rates, what can you infer caused the difference in their rates of weathering?__________________________________________________________________________________________________________________