Make Your Own Watershed
Overview
Students demonstrate their understanding of watersheds and the salmon’s journey by building and describing a model of a watershed that could produce salmon. They write narrative stories about the journey of a salmon through their personal watershed, and explain and present to the class.
Focus Questions
- What are the components of a watershed that can support salmon?
Enduring Understandings
- Watersheds, rivers, wetland and the one big ocean of the world are an interconnected system.
- Salmon depend on the rivers and the ocean during parts of their life cycle.
- Science is a way to help us study the many connections in our world.
Engage
20 minutes
Reflect on the field trip, and/or read a book about salmon, then review students’ knowledge of the components of a watershed and the conditions that support salmon in a watershed. Write these on the board, on chart paper, or have students record them in their science notebooks. You may use these items to create a scoring guide for their watersheds. Tell students they will be creating a representation of a watershed that can support salmon. They may choose the manner in which they create the watershed. They might choose to create a 3-D model, painting or drawing, poster, diorama, computer drawing or animation, PowerPoint presentation, or something else. Ask them to be thinking about their creation and to bring any special materials they may need (moss, sticks, gravel, etc).
Explore
60 minutes
Allow 2 class periods for students to create their representation of a watershed that can support salmon. During class or as homework, have them write a story of the journey of a salmon through their watershed.
Explain
30 minutes
Have the students share their watersheds, explain how they have shown that their watershed can support salmon, and read their story.
Elaborate
Have students share their watersheds with parents, community members, other classes, etc. Explaining the parts of the watershed and the salmon’s journey through it will help strengthen their understanding.
Evaluate
Understanding can be assessed as students explain and present their watersheds and read their story. You can use the requirements brainstormed in the engagement section of this investigation as a rubric.
Teacher Needs
Teacher Prep
- Gather a variety of materials for students to use as they create their representation of a watershed.
- Look over teacher background
Materials List
- Several 9” x 12” aluminum baking pans, plastic trays, or shallow planting trays
- Clay, play dough, or salt dough
- Student-collected gravel, twigs, grasses
- Watercolor paints, brushes, and paper
- Construction paper
- Scissors
- Glue
Student Needs
Prior Knowledge
Students will be demonstrating the knowledge they acquired about watersheds and salmon habitat in previous 3rd grade units.
Vocabulary
Standards
Science GLEs Addressed
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2nd grade: SB2, SC2, SC3, SD1
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3rd grade: SA1.1, SA1.2, SA2.1, SA3.1, SD2.1, SG4.1
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4th grade: SA1.1, SA1.2, SA 2.1, SA3.1, SC1.1, SC2.2, SC3.1
Other GLEs Addressed
Reading, Writing, Math
Ocean Literacy Principles
- The Earth has one big ocean with many features.
- The ocean is a major influence on weather and climate.
- The ocean supports a great diversity of life and ecosystems.
