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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 time. Learners will construct a pocket sundial to determine the time of day by using the shadow of a string cast on the dial and will observe the changing position of the shadow as the Sun appears to move across the sky.... (View More)

Audience: Middle school

This is an activity about time. Learners will construct a pocket sundial to determine the time of day by using the shadow of a string cast on the dial and will observe the changing position of the shadow as the Sun appears to move across the sky.... (View More)

Audience: Middle school

This is an activity about observing sunset positions. Learners will observe the position of sunset over the course of two to three months, at minimum, or up to a year, at maximum, and discuss results and predict future sunset locations. This is... (View More)

This is an activity about the Sun's position in the sky as seen throughout the northern hemisphere. Learners will create a small device that models the changing position of the Sun for an observer anywhere in the northern hemisphere. This is... (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)

This is an activity about observing sunset positions. Learners will observe the position of sunset over the course of two to three months, at minimum, or up to a year, at maximum, and discuss results and predict future sunset locations. This is... (View More)

This field activity introduces students to the concept of a system. Students identify the components, inputs and outputs of the local system at a range of biometry study sites, as well as the boundaries of their investigations at these sites in... (View More)