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This is a lesson about sorting and classification. In groups, learners will sort twenty images of galaxies into categories of their own devising. Then, the groups compare notes about their sorting criteria and learn more about what the different... (View More)

This is a lesson about representative sampling. When given parts of the Hubble Deep Field image, learners will count the number of galaxies in one sample section of the image. Then, they will calculate how many galaxies there are in each whole image... (View More)

This resource explains how to estimate the global consequence of a person's actions to quantify what it is to "think globally." To lend meaning to the result, it introduces "order-of-magnitude" thinking. Three examples, on the global impact of a... (View More)

Scientists use estimates as a check on more precise measurements; estimation is an easy way to quantify early hypotheses that can be tested or checked later in formal analysis. This article describes a number of examples of the use of estimating the... (View More)

This is a poster about Europa. Learners may read informational text or complete the Europa Geology Jigsaw Puzzle to learn about creating a geologic map of the ice on this moon of Jupiter.

Audience: Middle school

This is a lesson about the role of robots in space exploration. Learners will examine their prior notions of robots and then consider the characteristics and capabilities of a robot, like the Cassini-Huygens spacecraft, that would be sent into space... (View More)

In this lesson, learners will use History of Discovery cards and interpretive skits to examine how scientists throughout history have explored Saturn. The lesson enables students to discern the multicultural nature of scientific inquiry and to see... (View More)

This is an activity about gravity. Learners will design their own experiments to explore the fundamental force of gravity and then extend their thinking to how gravity acts to keep objects like moons and ring particles in orbit. They use the... (View More)

This is a lesson about systems and how they apply to Saturn. Learners will apply the concept of a system to learning about the Saturn system. They work with a ready-made scale diagram of the Saturn system, including the planet, rings, and moons.... (View More)

This article contains a series of kinesthetic activities, explaining and demonstrating why stars twinkle and what astronomers can do to minimize it. The activities can be used to demonstrate how Earth's atmosphere distorts starlight and how advanced... (View More)

Audience: Middle school, Informal education
Materials Cost: Free