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Chemistry  
Structure and properties of matter  
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Middle school  
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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)

This collection of activities is based on a weekly series of space science mathematics problems distributed during the 2012-2013 school year. They were intended for students looking for additional challenges in the math and physical science... (View More)

This is a lesson about crystal growth. Leaners will grow a sugar crystal and learn how this relates to growing protein crystals in space. The lack of gravity allows scientists on the space station to grow big, almost perfect crystals, which are used... (View More)

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 lesson, students will explore the density of substances as a model for understanding the mass to light ratio as a predictor of dark matter. They will measure and calculate mass and volume to calculate the density of a foam ball. Students... (View More)

This is a lesson about density. Learners will relate the concept of density to the density of dust in space. They will use mission data from the Student Dust Counter (SDC) interface to determine the density of dust grains in a volume of space in the... (View More)

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

This activity is about the carbon cycle. Using construction paper and signs, learners will simulate chemical bonds and the energy exchanges that take place during the carbon cycle. They will then respond to questions about the processes of... (View More)

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