Streams and Lakes rivers Infiltration Evaporation into the - - PowerPoint PPT Presentation

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Streams and Lakes rivers Infiltration Evaporation into the - - PowerPoint PPT Presentation

Jan 02, 2024 255 likes •676 views

Condensation Precipitation Snowmelt Springs Streams and Lakes rivers Infiltration Evaporation into the ground Aquifers Ocean Storage Groundwater flow to oceans A watershed is an area of land from which all runoff drains, or ' sheds '

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Evaporation Ocean Storage Groundwater flow to oceans Aquifers Infiltration into the ground Springs Streams and rivers Condensation Precipitation Lakes Snowmelt

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A watershed is an area of land from which all runoff drains,

  • r 'sheds' to the same river, lake, or other body of water.
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Do you live in a watershed?

YES! Everyone lives in a watershed.

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Cold Water Clean Water Food Places to Hide Gravel

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Trout Eat Stream Insects

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Stream Insects Eat Leaves

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Did you Know?

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 Every species of animal

has a range of physical and chemical conditions in which it can survive.

 Some invertebrates are

sensitive and will not survive in polluted waters, others will tolerate a little to a lot

  • f pollution.

Macroinvertebrates can tell us the quality of the water.

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 In the cleanest ponds,

lakes, and rivers, you’ll find the greatest diversity of aquatic invertebrates.

 In polluted waters, only

a few species can survive.

Macroinvertebrates can tell us the quality of the water.

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 Some can survive ONLY in clean water

Sensitive Macroinvertebrates

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 Some can survive in medium clean water

Somewhat-Sensitive Macroinvertebrates

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 Some can survive in both clean and polluted water

Tolerant Macroinvertebrates

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Creepy Critter Game

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Leaf Pack Network

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The Leaf Pack Network

 Network of citizens, teachers, and students

investigating their local stream ecosystems.

 Create an artificial leaf pack and place it in a stream.  Collect and examine the packs in the classroom.  Discover aquatic insects that indicate stream health,

showing the connection between trees and streams.

 Share data through the network.

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http://www.leafpacknetwork.org

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What will you be doing?

 Plan our Experiment – TODAY  Prepare Leaf Packs and put them in Creek- TOMORROW  Collect Leaf Packs from Creek – NEXT MONTH  Identify Insects – NEXT MONTH  Interpret Data – NEXT MONTH  What is the Water Quality of Our Site? – NEXT MONTH

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The scientific method is a way to ask and answer scientific questions by making observations and doing experiments.

  • Ask a Question
  • Do Background Research
  • Construct a Hypothesis
  • Test Your Hypothesis by Doing an Experiment
  • Analyze Your Data and Draw a Conclusion
  • Communicate Your Results

Scientific Method

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  • -amphipod

 Group One: A local stream has a lot of stormwater

pipes entering it and we want to know if it is affecting water quality.

 How would this be tested using the leaf packs?  Hypothesis?

Question 1

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  • -amphipod

 Group Two: A landowner cut down trees along a

stream and we want to know if it is affecting water quality.

 How would this be tested using the leaf packs?  Hypothesis?

Question 2

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  • -amphipod

 Group Three: A company is constructing a building

next to a stream causing soil to run into it. We are curious if it is affecting water quality.

 How would this be tested using the leaf packs?  Hypothesis?

Question 3

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  • -amphipod

 Collect leaves that are common around Creek and

place them in the mesh bag.

 Use the scale to weigh 30 grams of dry leaves in

each leaf pack.

 Complete the tag for each mesh bag and place tag

in leaf pack bag.

 Tie bag closed.  Loop a long length of string through leaf pack so it

can be tied to a rock (or log or roots).

Preparing Leaf Packs

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  • -amphipod

 Tie leaf pack directly in to stream to rock (log or

root).

 Position leaf pack facing upstream so that as much

  • f the surface area of the bag is facing the current

as possible. Make sure all leaf pack are submerged and securely tied.

 Have students record where they put them  Keep leaf packs in stream 3-4 weeks.

Placing Leaf Packs in Stream

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Collect Leaf Packs

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Collecting Insects

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Identifying Insects

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Interpret Data

Interpret Data

 Classroom Presentations  Uploading Data on Network

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 Leaf Pack Network Resource Manual

 Leaf Pack Data Sheets  Habitat Assessment  Insect ID sheet

 Learning Activities

 Tree ID  Leaf Pack Crossword

Additional Tools

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 Prepare One Leaf Pack Per Group  Tie Leaf Packs in Stream  Habitat Assessment

Field Work Today

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Questions?