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This is an activity about the apparent motions of Venus as seen from Earth. Learners will make a 3-D model using themselves, a light source, and a small white ball to visually understand Venus's orbital cycle and why it can sometimes can be seen in... (View More)

This is an activity about size and scale. Learners will identify and label their location on a series of maps, at successively larger scales, starting with their classroom location outward to the Milky Way galaxy. This is Activity H-1 of Universe at... (View More)

This is an activity about size and scale. Learners will identify and label their location on a series of maps, at successively larger scales, starting with their classroom location outward to the Milky Way galaxy. This is Actividad 8.1 as part of El... (View More)

This is an activity about science and pseudo-science. Learners will examine the validity of astrology by charting birth dates of U.S. presidents and by comparing horoscopes in different newspapers. After, students will attempt to identify their own... (View More)

This is an activity about craters. Learners will toss rocks of varying sizes into a bin of flour and cocoa. By varying the size and speed of the rocks, learners will determine how the impactors affect the shape and depth of the resulting crater.... (View More)

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 gravity. Learners will fill out a questionnaire to assess their ideas about how the Earth is shaped and how things fall at different places around the planet. Then, in small groups, learners will discuss how gravity works... (View More)

This is an activity about astrology and the scientific reasons behind the zodiac cycle. Learners will form a model by sitting in a circle, holding constellation signs, and placing a light source representing the Sun in the middle. Then, using the... (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 shape. Learners will investigate that the Earth is a sphere by comparing the length of shadows from nails arranged on a flat map compared to nails arranged around a spherical globe. From the observations collected, they... (View More)