3.2 Do NowImagine dropping a sugar cube into a cup of coffee and the

same sugar cube into a cup of cold lemonade. 1. In which cup do you predict the sugar cube will dissolve

first? Why?2. Predict what you could do to make the sugar cube dissolve

faster?3. List the three types of rock.4. Explain how each rock is created.5. Explain the difference between the two types of igneous

rocks.

Weathering

Unit 3 Day 2

ObjectiveTSW explain the differences in chemical and physical

weathering and how weathering rates are affected by a variety of factors using a Venn diagram.

EQ: What factors influence the rate of weathering? What locations have the fastest weathering?

HOMEWORK

• Complete the half sheet weathering worksheet 3.2

How Does Surface Area affect the Rate of Weathering?

• Demo: Mints and water

• Create a hypothesis: Which mint (whole or broken) do you think will dissolve the quickest?

DE Video

• http://player.discoveryeducation.com/index.cfm?guidAssetId=3AD9D2D9-95D5-4D4C-905D-092C58795462&blnFromSearch=1&productcode=DSCE

• While you watch, write down at least 5 BULLETED NOTES at the top of your notes from the information in the video

Biological Activity

Activities of organisms of plants, burrowing animals, and humans.

Frost WedgingWhen water freezes and expands, it enlarges cracks in rocks.

What happens when you freeze a coke can?

The liquid expands, and often times the can will bust!

Appalachian Mountains• Southern Appalachians shared

by the citizens of West Virginia, North and South Carolina, Tennessee and Georgia

• Falling rain, flowing streams and rivers, freezing and thawing that produced frost heaving and ice capable of shattering huge boulders and cracking apart walls of seemingly solid rock

Chemical WeatheringChemical Weathering

Frost WedgingFrost Wedging

Biological ActivityBiological Activity

Rate of WeatheringUse the textbook page 131 to explain how rock characteristics and climate affect the rate

of weathering. Draw this graphic organizer in your notes!

Rate of Weathering

What Type of Weathering?

Determine if the image is chemical or physical weathering.

Record your answers on your own sheet of paper.

Mechanical

Chemical

Chemical

Mechanical

Mechanical

Closure

In your own words, explain the process of weathering in relation to the rock cycle.

Exit TicketComplete a Venn Diagram comparing and contrasting chemical and mechanical (physical) weathering.