Catalyst

If you took the quiz: Define the following in

your Catalyst Section of your Class Journal:▪ Weathering▪ Weather▪ Rill erosion▪ Gully erosion▪ Respiration*▪ (Not in your books – think

back to biology)

You may use the books to complete this Catalyst.

If you have NOT taken Quiz #5, please come see me at the front of the room.

Agenda

Catalyst (5 mins) Announcements (3 mins) Opening (2 mins) Re-teaching: Chapter 7 (10 mins) Mini Quiz (15 mins) Independent Work: Section 9.1 (20 mins) Mini-Lesson: Surface Water Movement (15

mins) Pair Work: Problem-Solving Lab (13 mins) Closing (2 mins) Exit Ticket (5 mins)

Due Dates

Friday, November 30th Science Fair: Part #5

Objective

By the end of class, CWBAT review the most challenging sections of Chapter 7, will be able to define the vocabulary and concepts for Section 9.1, and will complete a complex modeling activity about bed loads.

CCSS Literacy: 4. ▪ Determine the meaning of symbols, key terms, and other

domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 11–12 texts and topics.

CRS EMI.603▪ Use new information to make a prediction based on a model

Re-teaching: Chapter 7

Notes

Use the Guided Notes handout

Definitions

Weathering Chemical or

mechanical processes that break down or change rocks/minerals on or near the Earth’s surface

Weather Current state of the

atmosphere, including short-term variations such as temperature and precipitation

Weathering ≠ Weather Humans can impact weathering AND

climate, but climate change was not covered in Chapter 7

Definitions

Rill erosion Erosion in which

water running down the side of a slope carves a small stream channel.

Gully erosion Erosion that occurs

when a rill channel widens and deepens.

More destructive than rill erosion.

Definitions

Respiration The process in

living organisms of taking in oxygen from the surroundings and giving out carbon dioxide

Breathing

Respiration and Weathering? Contributes to

chemical weathering Carbon dioxide

combines with atmospheric water to make weak carbonic acid Can react with the

calcite in limestone and marble▪ Damages such materials

Can also form clay minerals

Re-Earning Points on Quiz #5

See bottom of Guided Notes

The Easiest Quiz Ever!

Pre-test for our unit on Freshwater Systems 6 fill-in-the-blanks; 8 short answer You will only be graded on completion.▪ Do NOT put “IDK” for an answer – give it your

best shot. I want to see what you know

Independent Work

SILENTLY Read Section 9.1 (pages 211-221)

Create an outline for this section Include:▪ Section headings/subheadings▪ Vocabulary terms and definitions▪ Key concepts

20 minutes If you finish early, repeat the above

steps for Section 9.2 (pages 222-227)

Surface Water Movements

The Water Cycle

Only give an answer if you are the one holding the Nubbly Ball!

The Water Cycle

Transpiration

Infiltration

Runoff

Water which flows downslope along Earth’s surface

Runoff may: Reach a stream,

lake, or river Evaporate Form puddles and

go through infiltration▪ Soaking into ground

Runoff vs. Infiltration

Several factors:1. Vegetation2. Rate of Precipitation3. Soil Composition4. Slope

1) Vegetation

Soil with more vegetation allows more water to enter the ground.

Why? Less force

The harder rain hits the ground, the more it compacts the soil.

More compact = less pores

Gardening

2) Rate of Precipitation

What type of rain do you think infiltrates dry ground? Light, gentle

precipitation Heavy precipitation

becomes runoff▪ Falling too quickly to

infiltrate

3) Soil Composition

Soil is made of Humus ▪ Decayed organic material▪ Creates pores

Minerals▪ Different sizes: sand, silt, clay

Sand (coarse) = larger pores More infiltration

Clay (fine) = small/no pores

4) Slope

Greater slope = more runoff (less infiltration) Also has greater potential for erosion

Which will have more infiltration?

Which will have more infiltration?

Stream Systems

Made up of streams, tributaries (streams that feed into other streams), and rivers (large streams) Amazon River

system Watershed

All of the land whose water drains into a stream system

Stream Load

All the materials that the water in a stream carries

Examples? Living

Microbes Fish

Non-living Sediments Dissolved solids Dissolved gases ▪ Ex.: Oxygen

The Three Ways Streams Carry their Loads

1. Solution Material is carried in solution after it

becomes dissolved in the stream’s water.

Ex.: soluble minerals from rocks like calcium carbonate from limestone

The Three Ways Streams Carry their Loads

2. Suspension When small particles are held up by the

turbulence of a stream’s moving water Ex.: silt, sand, clay

The Three Ways Streams Carry their Loads

3. Bed Load Larger particles that are pushed/rolled

along the bed of the stream by the moving water

Ex.: sand, pebbles, cobbles

Stream Loads

Table Partner Work

There should not be excessive talking during this time.

With your table partner ONLY, complete the “Problem-Solving Lab” on page 217. #1-4 Due at the end of the period

Closing

Review Objective By the end of class, CWBAT review the

most challenging sections of Chapter 7, will be able to define the vocabulary and concepts for Section 9.1, and will complete a complex modeling activity about bed loads.

Exit Ticket

In the Exit Ticket Section of your Science Journals: Describe the factors which influence

infiltration. Describe the three ways in which

streams carry their loads.