Search Results
Showing results 1 to 3 of 3
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-884.jpg?itok=ZN4YC59g)
Cool It!
Source Institutions
Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-894.jpg?itok=mLkouf1m)
History of Electricity
Source Institutions
This is a series of demonstrations about different electrical and magnetic phenomena.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-500.png?itok=3RBUxQLu)
Curious Contraptions
Source Institutions
In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.