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In this activity, a Whiffle® ball containing a battery-operated buzzer is twirled in a circle to demonstrate the Doppler effect.  The demonstration is an illustration of how stellar spectra can be used to measure a star's motion relative to Earth... (View More)

This article describes an indoor, game-type demonstration, incorporating physics (EM wave modulation), math (binary codes), space technology, and music to show how spacecraft put information into the radio signals they send back to Earth. The... (View More)

Audience: Middle school

This is an activity about the use of light to learn about space. Learners will use colored filters to examine slides of stars and nebulae. These filters show how astronomers distinguish stars of different temperatures and nebulae with different... (View More)

Audience: Middle school, High school
Materials Cost: Free

This is an activity about the position of the Moon and the Sun in the sky. Learners will use styrofoam balls to model the interactions between the Earth, Sun, and phases of the Moon. This is Activity A-5 of Universe at Your Fingertips 2.0: A... (View More)

This is an activity about measuring craters using shadows and geometry. Learners will make a model crater and use a light source to make a shadow. When they are familiar with the techniques for estimating depths from shadows, they will apply their... (View More)

Audience: High school

This is a lesson about measuring star size. Learners will use eclipsing binary systems to measure star diameters. This is Activity G-8 of Universe at Your Fingertips 2.0: A Collection of Activities and Resources for Teaching Astronomy DVD-ROM, which... (View More)

In this experiential activity, students demonstrate to themselves the effect of the optic disc, or blind spot, inherent to the optic nerve entering the posterior of the eye (bulbus oculi). This resource is from PUMAS - Practical Uses of Math and... (View More)

Audience: High school
Materials Cost: Free per student

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 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 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