Hydrology
This unit explores water, the water cycle, and the locations of water in a land profile as well as soil development and profiles, and the ways in which erosion and deposition impact the land surface. A stream table is used throughout through the unit to illustrate the various concepts.
6 - 8 and 9 - 12
| Day | Topic/Activity | Key Concepts | Materials & Resources Needed | Field Science Possibilities |
| 1 | Show the Sweet Fresh Water video |
Stages of river development, drainage basins, stream deposits, and stream life |
Film | |
| 2 | Complete the video and hold a discussion |
Stages of river development, drainage basins, stream deposits, and stream life |
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| 3 | Draw the water cycle, introduce the stream table, review the beginning of the activity Stream table use for exploring water erosion and deposition. Then do the subactivity Streams as part of the water cycle. |
Water cycle, stages of river development, models (pictorial, physical, and technologic), stream table, deposition/erosion |
Stream table, paper/colors |
Make a field trip to the local stream |
| 4 | Notes of watersheds, demo on stream table. Do the subactivity Healthy watersheds demonstration. |
Drainage basins, models, technology, stream table, human activity affects, and technology after fires |
Stream table, sticks, netting, fake trees, and watershed background information |
Look at maps of local area for the watershed(s) that supply the town water |
| 5 | Aquifer notes and demo, water tension lab. Do the subactivity Aquifer demonstration. |
Aquifers, ground water, water tables, models, human activity affects, technology, and water surface tension |
Aquifer background info, ground water model, cups, paper clips, tweezers, pennies, eye droppers |
Investigate the source of water for wells in the local area |
6 |
Soil, what's in it - a lab |
Soil components, qualitative and quantitative lab, technology use – scopes and sifters |
Garden soil sample, soil sifters, balances, paper plates, hand scopes |
Use soil sample from school grounds or from students' homes |
| 7 | Soil types and textures – touch and feel exploration, soil triangle, use a TV scope to look at particles |
Soil components, soil types, technology use (TV scope), data analysis, and qualitative lab |
Soil triangle graph; clay, sand, loam mud samples to feel; soil type/texture background info; TV scope to magnify samples |
Use soil samples from attendance area |
| 8 | Soil creation - mechanical and chemical weathering notes; Blanchard Spring Caverns film |
Types of weathering, methods of weathering, photos/diagrams of caves, and life found in caves |
Weathering background info, Blanchard Spring Caverns film or other cave film |
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| 9 | Soil porosity lab |
Quantitative lab, soil characteristics, water movement in soil, differences in soil types, misconceptions on porosity, data analysis |
Soil samples, paper cups, graduated cylinders, water, stirring sticks |
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| 10 | Soil profiles – tools and samples, notes on soil formation, soil profiles |
Technology use – soil probes, soil profiles, soil formation, leaching, soil types/characteristics |
Soil probes – core and screw type, soil formation and profile background info, application of profile data |
Take probes into school yard to demonstrate use |
| 11 | Soil survey maps lab – day 1 of 2 |
Technology use – soil maps, human land use decisions, soil profiles, local application of info, land use |
Soil survey aerial maps marked with soil types, soil type/profile data to go with maps |
Use maps from local attendance area |
| 12 | Soil survey maps lab – day 2 of 2, lab observations – capillary movement and settling sediments
|
Capillary movement in soils, deposition of soil particles in water, comparison of soil types |
Soil survey aerial maps marked with soil types, soil type/profile data to go with maps, jar with soil/water, 3 soil types in tubes, water source as base of tube |
Use maps from local attendance area |
13 |
Erosion and deposition lab – wind lab |
Erosion and deposition, wind erosion effects, prevention of erosion, model and technology use – wind tunnels, human connection, historical connection, land use |
Wind tunnels, soil, tray, hair dryer, pebbles, fence, wind erosion background info |
Refer to local examples |
14 |
Erosion and deposition lab – mass wasting. Review the beginning of the activity Stream table use for exploring water erosion and deposition. Do the subactivity Mass wasting inquiry. |
Erosion and deposition, mass wasting, prevention of erosion, technology use – stream table, slope and mass wasting, models – trays, comparison of soil types |
Trays, dry and wet soil samples of 3 types, supports of different heights, stream table, mass wasting background info |
Refer to local examples |
15 |
Erosion and deposition lab – glaciation background, do the subactivity Glaciation. |
Erosion and deposition, visual models, landforms resulting from glaciers |
Pictures of glaciers and landforms resulting from glaciation, glacier background info, and terminology list |
Refer to local examples |
16 |
Erosion and deposition lab – glaciation, do the subactivity Glaciation in action. |
Qualitative lab and technology use – physical stream table and models |
Stream table, ice cubes, ice cubes with sand and pebbles enbedded, clay, cardboard base |
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| 17 | Day 1, clean water lab: Design a filter to clean water
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Inquiry and qualitative lab (design, run, analyze), technology/human effect interrelationship, team work, application of soil/water knowledge, models |
Dirty water. Colanders. Filter supplies: Netting, cheesecloth, dry beans, dry rice, sand, cotton balls, screening, fish gravel, and fish charcoal (rinsed), etc. |
Extension: Field trip to local water filtration plant |
| 18 | Day 2, clean water lab: Run lab and gather data
|
See above |
Standards to compare cleaned water. Above materials |
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| 19 | Day 3, clean water lab: Rerun lab, document, debrief
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See above |
Standards to compare cleaned water to, above materials |
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| 20 | Soil, water, and erosion unit assessment |
Application of knowledge, explanation of concepts |
Copy of assessment |