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Showing results 1 to 11 of 11
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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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-739.jpg?itok=IKKyRfeE)
Pot-in-Pot Refrigeration
Source Institutions
In this activity (on page 2 of PDF), learners create a low-tech refrigerator that requires no electricity to keep food from spoiling.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-255.jpg?itok=95bH1-76)
Handheld Water Bottle Rocket & Launcher
Source Institutions
In this activity, learners build handheld rockets and launchers out of PVC pipes and plastic bottles. Use this activity to demonstrate acceleration, air pressure, and Newton's Laws of Motion.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-044.jpg?itok=aqEnjdsN)
Measuring the Wind
Source Institutions
In this activity, learners explore how anemometers work to record wind speeds and how the equipment has undergone engineering adaptations over time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-943.jpg?itok=887uWaNw)
Water Rocket Launch
Source Institutions
In this activity, learners explore rocketry and the principals of space flight.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-459.gif?itok=UsTZvXn4)
Launch Altitude Tracker
Source Institutions
In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-971.jpg?itok=4_rMhE7I)
Heart of the Matter
Source Institutions
In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-833.png?itok=6DwWZoeR)
Trail Impact Study
Source Institutions
In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.
![](/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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-539.png?itok=6bSwhsFK)
A Better Fly Trap
Source Institutions
In this activity, learners observe fly behavior and then build a flytrap.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-941.jpg?itok=fV0ceocv)
Waterproof that Roof!
Source Institutions
In this activity, learners explore how engineers have improved roofing designs and materials in order to protect the contents of buildings.