Filters: Your search found 2 results.
Materials Cost:
$1 - $5  
Instructional Strategies:
Generating and testing hypotheses  
Resource Type:
Activity  
Educational Level:
High school  
Topics/Subjects:
Earth structure  
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Students will time the flow of water through soils with different properties and measure the amount of water held in these soils. They will also experiment with the filtering ability of soils by testing the pH of the water before and after it passes... (View More)

Learners will build a biosphere that is a balanced, self-enclosed living system able to run efficiently over a long period of time. This activity is in Unit 3 of the Exploring the Moon teachers guide, which is designed for use especially, but not... (View More)

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