38
Weathering/Erosion/ Deposition

Weathering/Erosion/Deposition. V-Map 1 side for chalk 1 side for m&m’s

Embed Size (px)

Citation preview

Weathering/Erosion/Deposition

Weathering/Erosion/DepositionV-Map1 side for chalk1 side for m&ms Do NowSWBAT describe mechanical weathering

1. Where do pebbles and small particles of rock come from?2. Did anyone carve pumpkins this weekend?

V-MapPretend the whiteboard is a piece of paper.Copy the V-Map on the whiteboard down on to your paper. COPY IT EXACTLY AS IT IS ON THE BOARD.

Mechanical weathering is breaking down of rocks into smaller pieces without changing what the rock is. Kind of like carving a pumpkin. I can carve the pumpkin, which makes smaller pieces, but it still is a pumpkin. Mechanical WeatheringHypothesis- make a prediction using no personal pronouns using an If, Then, Because statement.You are going to weather your rock for 5 million years. What will happen to an M&M if it is mechanically weathered?If___________________ then_____________________ because_______________________________

ProceduresMake observations about the M&M in your data tableChoose an M&M of your own- your favoriteTake the M&Ms, and place them into the plastic containerShake the plastic container for 5 minutes(A or 1 is the timer for your group)

Initial Observations Color, size, shape, textureObservations after the experimentColorSize (Cm)ShapeTextureDrawingWeathering/Erosion/Deposition Foldable1. Create a foldable by following the directions given to you on the sheet2. Use the example on the board to help you make your foldable3. Use the books to fill out your flipchart

Ch. 4 (pgs. 115-120) Weathering (work on this today)Ch. 5 (pgs. 145-170) Erosion and Deposition

Conclusion M&Ms1. What happened to the M&Ms

2. Thinking of the rock cycle, what process did you perform, and what would need to happen next for your m&m to become a rock?

3. Of the 4 mechanical weathering processes, which did you demonstrate during the lab? EXPLAIN.

4. How do you think this might happen in the natural world?(mechanical weathering examples)

Exit Ticket1. What is mechanical weathering?

2. What ways can mechanical weathering occur?

3. Which of the 4 ways of mechanical weathering did you demonstrate in the lab, why? Do NowSWBAT explain chemical weathering processes

1. Make a prediction by writing a hypothesis in an if-then-because statement using no personal pronouns.What will happen to the fire if Mr. Wallace places Boric Acid into the flame?(or universal indicator solution)

Weathering/Erosion/Deposition Foldable1. Create a foldable by following the directions given to you on the sheet2. Use the example on the board to help you make your foldable3. Use the books to fill out your flipchart

Ch. 4 (pgs. 115-120) Weathering (work on this today)Ch. 5 (pgs. 145-170) Erosion and Deposition

Cleopatras NeedleCleopatras needle is an ancient stone monument made in Egypt during the time of the Pharaohs. This monument was moved from Egypt to New York City in 1881. Over time its surface has been exposed to weathering processes, both chemical and physical, and it has been a challenge to keep it in good condition. The type of stone reacts with acidic solutions easily which has caused it to weather away.Think-Pair-ShareHow does the monument get exposed to acidic solutions (liquids)?How do you think the amount of surface area a rock has affects how fast or slow it will weather?

V-MapChemical weathering is the breaking down of rocks that changes what the rock is chemically made of. There is always some sort of chemical reaction!Changes the colorChanges the chemical compositionReleases gas (bubbles)Releases odor

Chemical WeatheringHypothesis- make a prediction using no personal pronouns using an If, Then, Because statement.You will weather your chalk for 5 million years

What will happen to the chalk if it comes in contact with vinegar (weak acid)?If___________________ then_____________________ because_______________________________

ProceduresMake observations about the chalk in your data tableCut the chalk into a third, give one piece to each student and scratch your name on to itPlace the chalk in the beaker, use the droppers to drop 20 drops of vinegar onto your chalk Note any observations after every 5 drops(A or 1 is the timer for your group)

Initial ObservationsHow hard is the chalk? Can it be scratched by your finger nail?Observations During ExperimentObservations after the experimentConclusion ChalkIn this activity the vinegar, which is acidic, reacts with the chalk (which is made from calcite like shells of sea animals and limestone) forming carbon dioxide gas (the bubbles you see during the reaction are the carbon dioxide gas, CO2), water, and another calcium compound.

1. Describe what happened to the chalk?2. Think of the rock cycle, what process of the rock cycle did you demonstrate?3. How do you think this might happen in the natural world?(chemical weathering examples)4. Critically think, what role do humans play in making water (rain, oceans) more acidic?Weathering/Erosion/Deposition Foldable1. Create a foldable by following the directions given to you on the sheet2. Use the example on the board to help you make your foldable3. Use the books to fill out your flipchart

Ch. 4 (pgs. 115-120) WeatheringCh. 5 (pgs. 145-170) Erosion and Deposition

Exit Ticket1. What is chemical weathering?2. What is an example of chemical weathering?3. Mechanical weathering breaks rocks apart, exposing more surface area. How do you think mechanical weathering can affect the rate at which chemical weathering occurs on the rock. 4. Why would 10, 1 kg pieces of limestone weather more quickly than one 10 kg piece of limestone?Do Now

1. Make observations about the picture to the right, then make an inference. What kind of weathering took place- mechanical or chemical? If its chemical, explain what type and why.If its mechanical, explain what type and why.Earth Changes Earth is constantly changing, and events occur that can change the face of the Earth. This can happen quickly or slowly

Rapid ChangesSlow ChangesEarthquakesWeatheringTsunamisErosionVolcanoesDepositionRock slides

Deposition NotesDeposition occurs when there is a reduction in the energy of motion of the wind, running water or glaciers. The heavier materials are dropped (deposited) first followed by the lighter materials. Wind deposits materials when it loses energy of motion

often due to either the wind and particles hitting an object or the wind slowing down.

When the wind deposits materials it may make a dune or sand ripple.

Water Water speed slows due to meanders or entering another water body so it loses energy of motion therefore dropping the sediments it is carrying.

Water can make deltas or stream valleysV-Shape valleysGlaciersWhen a glacier slows due to a lack of energy of motion

It deposits materials along the front and sides of the glacier as piles of till known as moraines. Carves a U-Shape

GravityMass movement or mass wasting is movements of masses of bodies of soil, bed rock, rock debris, soil, or mud which usually occur along steep-sided hills and mountains because of the pull of gravity. Landslides, mud slides, and avalanches resultDepositionWhat is deposition?What are some examples of areas in which sediment gets deposited?Boards UpMatch the following landforms with the terms below that are involved in creating themWind, Gravity, Running Water, Glaciers

Cut Out OrganizerUsing the organizerThink-Pair-ShareFirst on your own,1. Set up the chart as shown on the paper using scissors and a sheet of paper. 2. Cut out the squares and place them under the correct heading. Second, with your partner,1. Compare your charts to one another's2. Discuss why you placed the descriptions where you did, and make correctionsExit TicketUse the terms below to match what each question description is associated withWind, Gravity, Running Water, GlaciersAbrasion _____________________Rock Slide ____________________Mass Movement (Mass wasting) _________________Delta ___________________Moraine ______________________Dune ____________________

HomeworkWorksheet is due tomorrowDo Now (Probably Wont Do This)Identify the following descriptions of weathering as either Chemical or Mechanical.Tree roots cracking the concrete foundation of a house. Limestone dissolved by carbonic acid.The oxidation (rusting) of minerals in rocks that contain iron. Repeated freezing and thawing of water in the cracks of rocks.

Erosion and DepositionErosion and deposition change and shape the Earth around us.

Using your tins, and sediment, make sure your sediment is at the correct heightPlace the indicator at the top of the hill.Use the water Record speed by timing how long it takes for the slider to move to the bottom, and measure the distance it traveled. Use ice cube- Record speed of erosion by timing how long it takes for the ice cube to move to the bottom, and measure the distance it traveled.

Record your observations into the data table.

Close Read HighlightCircle words that you do not knowUnderline

Horizontal Vs. Vertical Deposition SortingHorizontal SortingVertical Sorting

When sediment is suddenly dropped in water the sediments separate by size

Largest on bottom, smallest on top. When sediment is deposited in a lake or a stream

The largest sediment is deposited where the water moves the fastest, and the smallest is where the water moves the slowest. As a river moves from the sourceIt starts out fast due to the steep slopes from the higher elevations then gradually slows down as the land becomes more flat.Where will larger sediment most likely be deposited?Where will the smaller sediment most likely be deposited?

Faster RiverErosion Here

Slower RiverDeposition Here

Larger SedimentSmaller SedimentSTREAM VALLEYriVer Shaped

Glacier ValleyU-ShapedAU-shaped valley isformedby the movement of a glacier down a slope. It has a characteristicU shape, with steep, straight sides and a flat bottom. The U-shape is due to the erosion of the glacier because of its weight as it scrapes the bottom of the valley floor.

Exit TicketDo NowQUIZ DAY

Identify the following descriptions of weathering as either Chemical or Mechanical.Tree roots cracking the concrete foundation of a house. Limestone dissolved by carbonic acid.The oxidation (rusting) of minerals in rocks that contain iron. Repeated freezing and thawing of water in the cracks of rocks.

Concept MapWeatheringDepositionMechanicalGravityChemicalWaterIce WedgingIce Pressure ReleaseMorainePlant Root GrowthBeachesAbrasionWindErosionSurface areaDunes RustingDeltasDissolving

Create a concept map as a group of 3

Gallery Walk-Note any differences or similarities from yoursForget something?Something incorrect?What questions do you have?Erosion, Deposition, Weathering QuizWhat are ways something can be weathered?What are the five agents of erosion? How does different sized sediment get deposited in a stream?Whats a delta, dune, moraine, and beach?Do NowUpdate mastery trackers

Rocks Test Re-Takes Explanation

Plate Tectonics Vocabulary- Frar models

Plate Tectonics Layers of the Earth LithosphereAsthenosphereMantleCrustInner Outer core