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Deep Sea Diver
Source Institutions
In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-923.jpg?itok=_-xqjUQh)
Sky Glider Challenge
Source Institutions
In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-921.gif?itok=4MAqC_S6)
Watercraft
Source Institutions
In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-924.jpg?itok=rgb40AVf)
Sky Floater Challenge
Source Institutions
In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-295.png?itok=R4PrPQbV)
Flinker
Source Institutions
In this activity, learners make a foam packing peanut "flink"--neither float away nor sink--in water. Learners experiment with materials to make a Flinker that "flinks" for 10 seconds.