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Topics/Subjects:
Earth, moon and sun  
Educational Level:
Middle school  
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Now showing results 21-30 of 48

This is a unit of 8 sessions about the Sun-Earth system. Learners will construct a model to show the relative size and scale of the Sun-Earth system, investigate the visible and electromagnetic spectrums, discuss solar flares and solar weather,... (View More)

Audience: Middle school

In this problem set, learners will compare actual versus computer track of a solar eclipse in Babylonian times to calculate the rate at which the day is lengthening over time. Answer key is provided. This is part of "Earth Math: A Brief Mathematical... (View More)

Audience: Middle school, High school
Materials Cost: Free

This activity, effective outdoors or indoors, demonstrates how insolation is affected by latitude by using a pair of thermometers, each taped to some cardboard, placed outside on a sunny day. A globe can also be used, outdoors or indoors. Students... (View More)

This resource complements a planetarium experience. However, the accompanying educator's guide and companion guides - with lessons on observing and investigating the Moon - are available to download for independent classroom use. The hands-on... (View More)

This web page features a short essay about the equinox solar alignments of the pyramid of Kulkulkan at Chichen Itza. It can be used by educators as background information or as a reading assignment for learners.

This is an activity about the relative sizes of the Earth and the Moon and the distance between them. Learners will inflate a balloon to the approximate size of the moon in relation to a standard globe. They will then hypothesize as to the correct... (View More)

Audience: Elementary school, Middle school
Materials Cost: Free

Satellite data on cloud cover is used in this investigation to show the relationship between clouds and solar declination. Students will download data on declination angles along with data on clouds and cloud cover for a one-year time period.... (View More)

Keywords: Solar inclination
Audience: Middle school, High school
Materials Cost: Free

This is an activity about measuring angular size and understanding the solar and lunar proportions that result in solar eclipses. Learners will use triangles and proportions to create a shoebox eclipse simulator. They will then apply what they learn... (View More)

In this activity, students engage in an ongoing investigation to find patterns of sunlight and shadow in a classroom (or any room that gets sunlight) at different times of the day and different times of the year. Students look for repeating... (View More)

This activity enables students to better understand the motion of the Sun and how we use it to measure time. Students create a "horizon calendar" at their school by carefully observing and recording the horizon and the Sun at sunset (or sunrise, for... (View More)