Filters: Your search found 16 results.
Topics/Subjects:
Earth structure  
Materials Cost:
$1 - $5  
Learning Time:
30 to 45 minutes  
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Now showing results 11-16 of 16

This chapter provides a series of investigations, ranging from teacher-centered to open inquiry, that involve the formation of clouds in a model cyclone, and demonstrating how the availability of heat (indicated by temperature) affects formation and... (View More)

In this activity, students experience a demonstration of light scattering that explains the blue colors in the Intersetllar Medium (ISM) nebulae, and the reddening of stars viewed through the ISM. It also explains the blue appearance of the sky on... (View More)

Audience: High school, Higher education
Materials Cost: $1 - $5

This learning activity engages students in measurement of pH in water and soil samples, plants and other natural materials. By mixing different substances, they observe how pH changes, and become familiar with the pH of common household products.... (View More)

In this introductory classroom activity, students exercise their scientific skills of observation and deduction as they use their senses and simple laboratory assays, such as pH indicator paper, to identify mystery pollutants in water samples.... (View More)

This hands-on activity demonstrates how the combining two fluids (confluence of two rivers, Mediterranean water spilling over the straits of Gibraltar into the Atlantic) involves two processes: (1) stirring - stretching of the bulk fluid, and (2)... (View More)

Learners will understand some of the geological processes and the structures that form as lava flows across planetary landscapes by using mud as an analog for lava. This activity is in Unit 2 of the Exploring the Moon teachers guide, which is... (View More)

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