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Showing results 1 to 8 of 8
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Hold a Hill
Source Institutions
In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-294.png?itok=E5LyhECl)
Lichen Looking
Source Institutions
In this outdoor activity, learners search for lichen, a combination of a fungus and an alga living together. Lichen grow where most other plants cannot, on rocks, the trunks of trees, logs and sand.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-798.gif?itok=v5WNB9cU)
Shake Table
Source Institutions
This activity guide includes instructions on how to build a "Shake Table" by mounting an eccentric mass (off center) on the shaft of a small dc motor.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-161.gif?itok=kNz_1W2v)
Waves and Tides
Source Institutions
In this 7-10 day investigation, learners develop an understanding of waves and tides and their motion through discussion, demonstration, and hands-on activities.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-220.jpg?itok=a-RO4Ga2)
Rocket Wind Tunnel
Source Institutions
In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-905.jpg?itok=FofB2CXb)
Map That Habitat
Source Institutions
Historically, sea floor mapping (bathymetry) was done by soundings.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-226.png?itok=jsGwA2Ry)
Super Soil
Source Institutions
In this outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-239.png?itok=HNOLB5T_)
Trail Construction
Source Institutions
In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.