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This is an activity about magnetic fields. Using iron filings, learners will observe magnets in various arrangements to investigate the magnetic field lines of force. This information is then related to magnetic loops on the Sun's surface and the... (View More)

Audience: Elementary school

This is an activity about Earth's magnetosphere. Learners will use a magnet, simulating Earth's protective magnetosphere, and observe what occurs when iron filings, simulating the solar wind, blow past and encounter the magnet's field. This is the... (View More)

Audience: Elementary school

This is a series of three activities about light and spectra. First, learners will construct their own spectroscope, observe common light sources, record the observed spectra, and compare their findings. Next, learners will use their spectroscopes... (View More)

This activity is about the discovery of water ice on Mars. Learners will record and graph temperature data and use a model of an ice-rich and ice-free surface on Mars to examine how ice content in the martian soil would impact the temperature of a... (View More)

This is an activity about photosynthesis. Learners will use the basic principle of photosynthesis and investigate how light intensity diminishes as a function of distance from the light source. Questions help them connect these two ideas to... (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 an activity about cratering. Learners will simluate planetary impact craters on a small scale in the classroom. Relationships between mass and velocity (kinetic energy) of the impactor and crater size are explored, both qualitatively and... (View More)

Keywords: Crater
Audience: Middle school

This is an activity about the existance of infrared radiation. Learners will measure and compare temperature changes due to radiation in the visible and infrared parts of the spectrum using a strong light source. This activity is part of "Ways of... (View More)

This is an activity about how impacts in space increase the heat of planetary bodies. Learners will demonstrate the conversion of kinetic energy (energy of motion) to heat (thermal) energy by hammering a nail and feeling its temperature increase.... (View More)

Audience: Middle school

This is an activity about gravity in space. Learners will use water in a cup to demonstrate “weightless” conditions in free-fall. This activity is part of "Ways of Seeing," an interactive, educational CD-ROM from NASA's Cassini Program. The... (View More)

Audience: Middle school