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Earth, moon and sun  
Earth history  
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Middle school  
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This is a DVD about asteroids and impacts in the solar system. Learners can watch a 7-minute video of the "lifetime" of a meteor. The narrated, subtitled program includes images of impact craters on planets and asteroids, visualizations of the... (View More)

In this problem set, learners will analyze a table of the length of day (hours) and the number of days per year on Earth in past eras. They will calculate future values, plot some of the data and identify the rate of increase. Answer key is... (View More)

Keywords: Inquiry; Table analysis
Audience: Middle school, High school
Materials Cost: Free

This activity is designed to introduce students to planetary geologic features and processes. First, students will use NASA satellite images to identify geologic surface features on the "Blue Marble" (Earth), and will explore the connection between... (View More)

In this activity, students investigate sea level change during glacial maxima during the Ice Ages, and learn how lowered sea level presented additional routes for intercontinental human migration. Summary background information, data and images... (View More)

Audience: Elementary school, Middle school
Materials Cost: Free per student

This is a website about microbiology. Learners may explore information about microorganisms, extremophiles and extreme habitats, as well as the ecology, diversity and evolution of micro-organisms.

This activity explores how ancient Sun observers made use of natural and built structures to mark solar alignments observed at different times of the year, particularly around the solstices and equinoxes. In Part 1, the teacher prepares a horizon... (View More)

In this activity, students begin learning about archaeoastronomy much as the first skywatchers began learning about the sky: by observing and wondering. Students observe photographs and drawings of petroglyphs, pictographs, and natural and... (View More)

In this activity, students learn the basics of the horizon, direction and the rising and settings of the Sun and stars by making a schoolyard "medicine wheel" with sidewalk chalk on playground asphalt. Medicine wheels are stone rings constructed by... (View More)

Remote sensing detects both human and physical features by using seven distinct image elements: tone, shape, size, pattern, texture, shadow and association. Students are introduced to each of these elements individually through images, descriptions... (View More)

Remote sensing, using Thermal Infrared Multispectral Scanner (TIMS) data, has lead to the discovery of previously unknown roads in the canyon area of New Mexico once occupied by the Anasazi culture. Students will use those images, along with maps... (View More)

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