Filters: Your search found 2 results.
Learning Time:
30 to 45 minutes  
Instructional Strategies:
Generating and testing hypotheses  
Materials Cost:
1 cent - $1  
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In this hands-on activity, students create a model soil profile in a two-liter beverage bottle, time the movement of water through different soils and observe the amount of water held in these soils. They observe the filtering ability of soils by... (View More)

In this inquiry investigation, students study the motion and positions of the Earth and how they affect the path of sunlight we get in different places. They discover that the Earth must be curved to account for the different lengths of shadows at... (View More)

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