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Chemistry  
Structure and properties of matter  
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The pedosphere (soil) is the focus of this GLOBE eTraining program module. Protocols for investigating soil temperature, moisture, characterization, density and infiltration are explained. In addition, each module includes interactive digital field... (View More)

The hydrosphere (water, ice, and vapor) is the focus of this GLOBE eTraining module. Protocols for investigating many characteristics of water such as temperature, transparency, electrical conductivity, pH, dissolved oxygen, salinity, nitrates, and... (View More)

Students are tasked with virtually designing a spacecraft to withstand the harsh environment of the Van Allen Radiation belts- the location of many communication, GPS and weather satellites. The details of the challenge, along with videos on... (View More)

Audience: Informal education
Materials Cost: Free

This short video (~2 minutes) explains how a raindrop falls through the atmosphere and why a more accurate look at raindrops can improve estimates of global precipitation. This information is important to scientists working on the Global... (View More)

Use this interactive model to test how energy used in your home connects to carbon. This is part of Unit 3 of Interactives and Models: Carbon in the Future & You.

Keywords: Carbon use
Audience: High school
Materials Cost: Free

In this textbook chapter, students review concepts of matter and energy as a precursor to understand how carbon dioxide traps heat in the atmosphere. This is the second chapter in the unit, Climate Change, which addresses the question of how human... (View More)

Students will learn about black holes through reading a NASA press release and viewing a NASA eClips™ video segment. Then students will use tables and mathematical expressions to compare black hole sizes and temperatures. Common Core State... (View More)

Keywords: Black holes; Supernova
Audience: Middle school
Materials Cost: Free

In this problem set, learners will analyze a table on the reflectivity of various substances to three kinds of wavelengths in order to answer a series of questions. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to... (View More)

Keywords: Wavelength; Inquiry
Audience: Middle school, High school
Materials Cost: Free

In this problem set, learners will apply the concepts of reflectivity and absorption to derive the likely composition of the materials described in different scenarios. A table with the reflectivity of common materials and the answer key are... (View More)

Audience: Middle school, High school
Materials Cost: Free

In this problem set, learners will practice fractions by working with the ratios of various molecules or atoms in different compounds to answer a series of questions. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to... (View More)

Keywords: Molecule; Atom; Ratio; Compound
Audience: Elementary school, Middle school
Materials Cost: Free
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