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Chemistry  
Structure and properties of matter  
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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)

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)

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

In this problem set, learners will answer a series of questions about the complex molecule, Propanal. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to Earth Science and Climate Change.

Audience: Elementary school, Middle school
Materials Cost: Free

In this activity, students play a board game where they learn the characteristics of and differences between fission and fusion, as well as the real world applications of these energy-releasing reactions. Reproducible game cards and and game board... (View More)

In this learning assessment, students demonstrate understanding of the following concepts: solids, liquids and gases, changes of state, convection, and density. Students create a skit where the actors and actresses are molecules, and dramatize,... (View More)

Audience: High school
Materials Cost: Free per group of students

This lesson plan focuses on the concepts of atomic number, mass number, isotope, and nuclear atom. A student quiz is included as an assessment instrument. This resource is from PUMAS - Practical Uses of Math and Science - a collection of brief... (View More)

Keywords: Neutrons
Audience: High school
Materials Cost: Free per group of students

This is a lesson about the science supporting the design and operation of an ion propulsion engine. Learners will study the concepts of formation and discharge of charged particles, attractive and repulsive forces between charged particles, and the... (View More)

Audience: High school
Materials Cost: Free
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