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In this activity, learners discover how to determine the distance to a lightning strike or nearby thunderstorm.

This is an activity which will allow learners to gain an understanding of lemur behavior through observation and role play.

In this activity, learners help a poor cartographer color in the countries on a map, making sure each country is colored a different color than any of its neighbors.

In this activity about computer programming, learners follow instructions in a variety of ways in order to successfully draw figures.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video.

In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

In this activity, learners compare the ways of life of Plains Native Americans who hunted and moved frequently to follow the buffalo herds, and Native Americans who farmed and lived in more permanent

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.