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Physical sciences  
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This is an activity about the Doppler effect. Learners will use long springs or ropes to examine the frequency and wavelength of various waves. Then, they will observe a demonstration of the Doppler effect for sound waves, using this understanding... (View More)

This is an activity about the expansion of the Universe. Learners will use a special set of transparency and master sheets with dots representing clusters of galaxies at two different eras of the Universe's history. After aligning the transparency... (View More)

This is an activity about the expansion of the Universe. Learners will use a special set of transparency and master sheets with dots representing clusters of galaxies at two different eras of the Universe's history. After aligning the transparency... (View More)

This is an activity about safely observing the Sun. Learners will use a telescope or binoculars to collect sunlight and safely project it on a piece of paper, where they can detect sunspots. This is Actividad 2.2 as part of El Universo a Sus Pies, a... (View More)

This is an activity about safely observing the Sun. Learners will use a telescope or binoculars to collect sunlight and safely project it on a piece of paper, where they can detect sunspots. This is Activity G-1 of Universe at Your Fingertips 2.0: A... (View More)

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