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The Shape of Floatation
Source Institutions
In this activity (on page 2 of the PDF under GPS: Sailboat Design Activity), learners will discover how the shape of an object, not just its weight, determines whether it floats or sinks.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-113.png?itok=voFrQaUA)
Twirling in the Breeze
Source Institutions
In this engineering activity, learners build a device (an anemometer) to measure how fast the wind is blowing.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-103.png?itok=Gl0jYJuC)
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-000-000-004-104.png?itok=5OKbZxPD)
Breaking Point
Source Institutions
In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-112.png?itok=gK4Bqqsy)
Sink or Swim?
Source Institutions
In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7.