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In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern.

This great "re-use it" activity will demonstrate how to transform a greeting card into a box. Once constructed, the box can have many uses like holding special notes or keepsakes.

In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.

The goal of this activity is to design, build and test a house or toy for an animal.

In this activity, learners will engineer a new shape and use it to create a new pattern with no wasted space.

This activity gets learners looking at 6-sided shapes in nature, including the cells of a beehive, as well as other shapes.

In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced.

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

In this demonstration, learners explore a variation of a Foucault pendulum, but upside down.

In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity (Lesson 1), learners work in groups to create tide simulations.

In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash.

In this 6-7 day investigation, learners begin with an introduction to seamounts that are present in the Gulf of Alaska.

This activity helps learners understand how the angle of the Sun affects temperatures around the globe.

In this activity, learners review and discuss weathering, erosion and mass wasting, to gain a stronger understanding of how Hickory Run’s Boulder Field was formed after the Laurentide Continental Glac

In this design-based lesson, learners study flood dynamics as they modify a riverbed with blockages or levees to simulate real-world scenarios.

This is an activity about discovering the colors and beauty of nature. Learners will spend time outdoors, matching paint chip samples, colored paper, or colors of clothing to those found in nature.

In this activity, learners will turn an ordinary tray of sand into a desk-top garden for meditation.