Search Results
Showing results 1 to 6 of 6
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-961.jpg?itok=Dr8c1LDR)
What Trickles Down?
Source Institutions
Learners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-910.jpg?itok=YWyy9oim)
How Fast Can a Carrot Rot?
Source Institutions
Learners design their own experiment to determine conditions that either help or hinder the decomposition of carrots by soil microbes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-096.jpg?itok=0pDtM4_z)
Racing with the Sun: Creating a Solar Car
Source Institutions
Learners use engineering design principles to construct and test a fully solar-powered car. Solar car kits usually include a photovoltaic cell and motor; some include a chassis as well.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-907.jpg?itok=qD8DkZhu)
Hot Cans and Cold Cans
Source Institutions
Learners apply their knowledge of heat transfer to design two cans - one that will retain heat and one that will cool down quickly.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-871.jpg?itok=HrqxX34z)
Sliding and Stuttering
Source Institutions
Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-872.jpg?itok=mBKhSo_v)
Wet Pennies
Source Institutions
Learners initially test to see how many drops of liquid (water, rubbing alcohol, and vegetable oil) can fit on a penny.