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Life sciences  
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In this activity, students quantitatively evaluate the accuracy of a classification and understand a simple difference/error matrix. Students sort birds into three possible classes based on each bird’s beak: carnivores (meat eaters), herbivores... (View More)

In this lesson, students are introduced to atoms, molecules, and elements. Learners will build constructions out of different types of building materials as a metaphor for atoms and molecules. They interpret different symbolic representations for... (View More)

Audience: Elementary school, Middle school
Materials Cost: Free

This is a lesson where learners explore magnetic forces, fields, and the relationship between electricity. Learners will use this information to infer how the Earth generates a protective magnetic field. The lesson models scientific inquiry using... (View More)

This is a lesson where learners explore plate movement and the relationship between plate tectonics and volcanoes. The lesson models scientific inquiry using the 5E instructional model and includes teacher notes, prerequisite concepts, common... (View More)

In this activity, students pose several hypotheses for what will happen if you continue heating or supplying energy to the hot and cold planet models (Mercury, Mars, Venus, and Earth) and then test their hypotheses using a spreadsheet based... (View More)

This is a lesson where learners explore conditions that might change the density of a substance, resulting in movement. Learners will observe convection and use this information to infer how movement occurs inside the Earth. The lesson models... (View More)

This lesson is comprised of three parts grouped to enable student understanding of classifying organisms. In part one of the lesson, students classify imaginary organisms represented by a mix of breakfast cereals, candies, nuts, raisins, etc.... (View More)

Size and shape are important in astrobiology. In this activity and slideshow, students observe the importance of relative size and morphology in identifying microscopic structures when viewed with the scanning electron microscope. This activity is... (View More)

This series of six activities encourages students to think about the characteristics of life and the possibility of looking for life on Mars. The first three activities from Destination: Mars establish the criteria for recognizing life. The other... (View More)

In this activity, students will observe the relationship between temperature and metabolism. The subjects for this experiment are Saccharomyces cerevisiae, one-celled organisms more commonly known as baker's yeast. By observing the presence of... (View More)