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The nature of technology  
Earth, moon and sun  
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This is an activity that uses numerical information to help dispel the prior conception that distance from the Sun causes the seasons on Earth. Learners will examine two images of the Sun, taken six months apart, measure the apparent diameter of the... (View More)

Audience: High school

This is a lesson plan for several related activities about the Sun. Learners will observe how a candle flame is like the Sun, brainstorm why the Sun is needed and how energy from the Sun is used, construct a Sun-Earth scale model illustrating both... (View More)

This is an activity about solar and lunar eclipses. Learners will use Styrofoam balls and a single light source to model and observe how both types of eclipses occur. This is Actividad 1.4 as part of El Universo a Sus Pies, a Spanish-language... (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 the Sun's position in the sky. Learners will use a clear plastic hemisphere to create a model of the sky and mark the position of the Sun in the sky on the hemisphere several times throughout the day. From this information,... (View More)

Audience: High 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 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)

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