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Soil is 25 percent air on average. Learners may have a difficult time accepting that fact without a visual to demonstrate the property. A quick video lesson uses a model to show how this percentage is true and also discusses the different properties of soil using the model as a reference.
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Concepts
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Instructional Ideas
- Have pupils bring in samples of soil from different areas to compare and contrast properties
- Use proportions to quantify particle size in relation to a given particle such as the beads in the lesson
Classroom Considerations
- Consider monitoring YouTube comments if making the video available for independent viewing
- This video is hosted on YouTube
Pros
- Provides a thorough description of the properties of soil
- Communicates the information effectively in a short amount of time
Cons
- None