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Educational Level:
High school  
Materials Cost:
1 cent - $1  
Instructional Strategies:
Lab procedures  
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In this lesson, students explore a discrepant event when they design an experiment to measure the rate that ice melts when in pure water versus salt water. It is designed to help students realize that a carefully-designed experiment may yield... (View More)

In this laboratory activity, students investigate chromophoric dissolved organic matter (CDOM) through gradual dilution of black, green and chamomile tea. Through this activity, students discover how CDOM can dominate the absorption of sunlight, how... (View More)

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)

This is a lesson about radiation and the various sources of radiation that a spacecraft may encounter in its journey. Learners will calculate their annual exposure to high-energy radiation, identify sources of high-energy radiation, and explain why... (View More)

Keywords: Radiation

This is an activity about lunar magmatic differentiation, in which learners simulate the process of geological differentiation. The activity ends with an extension question that asks about the makeup of the highlands of the Moon. This activity is in... (View More)

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