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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.
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Erosion and Floods
Source Institutions
In this activity, learners create models of erosion and floods and learn to recognize both in their environment.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-320.gif?itok=QTXVgl6l)
Decomposition Column
Source Institutions
In this activity, learners turn empty 2-liter bottles into a see-through compost container.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-143.jpg?itok=Tx4Pip5_)
Does Sunscreen Protect My DNA?
Source Institutions
In this laboratory experiment, learners explore how effectively different sunscreens protect yeast cells from damage caused by ultraviolet (UV) radiation.
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LEGO Orrery
Source Institutions
Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.
![](/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.
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Ice Tower Excavation
Source Institutions
In this activity, learners will pretend to be archaeologist using this chilling experience.
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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-000-000-001-852.jpg?itok=y2_4EDqZ)
Sand Grain Observations
Source Institutions
In this activity (on page 1 of the PDF under SciGirls Activity: Earthquakes), learners will use a magnifier to carefully examine samples of sand from different locations.
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The Squeeze Box
Source Institutions
In this geology activity learners build a "squeeze box," which allows them to compress layers of sediment. This is a great way to investigate folding and faulting in the Earth.
![](/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-000-000-001-082.jpg?itok=8_Vy00cb)
Gaming in the Outdoors
Source Institutions
In this set of outdoor games, learners increase their awareness of the outdoor environment by going on a scavenger hunt and an out-of-place hunt.
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Map That Habitat
Source Institutions
Historically, sea floor mapping (bathymetry) was done by soundings.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-862.jpg?itok=kbDNMXLR)
Wind Power: Creating a Wind Generator
Source Institutions
This lesson challenges groups of learners to design and construct a wind generator with the most electrical output.
![](/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-000-000-004-592.png?itok=t48lDyhK)
Ice on Mars
Source Institutions
In this activity, learners use sand and ice cubes to create a model of permafrost and the effects of the ice melting through the surface.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-604.png?itok=2SD1rw9Z)
Exploration Vehicles
Source Institutions
Using recycled materials, learners will design a transportation vehicle to carry an egg in an egg toss (a rudimentary model of a shock absorbent transport vessel).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-601.png?itok=Og6uAZtW)
Small Habitats
Source Institutions
In this activity, learners build a model of a self-sustaining habitat (growing grass and beans from seeds).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-487.png?itok=-2wlbvkz)
Take a Tectonic Vacation
Source Institutions
This multi-part activity from the National Parks Service blends the science of plate tectonics with the culture and history of places with dramatic geologic landscapes.