Students will design and build their own boats using recyclable/every day items. They will practice math skills by working with a materials budget. The students will observe the concepts of buoyancy and density at work and gain a greater understanding of how this effects boats.
|Recommended Grade||5th grade|
|Sciece Topic||Force and Motion|
Force and Motion: North Carolina
Why do things float? It has to do with their density. Density describes how much mass is packed into an object. Mass is the stuff that everything is made of. Something with more stuff will be more massive. Water is pretty dense and only objects with a greater density than water will sink.
Students should be able to describe what happens to the mass and buoyancy of the boat when the pennies are added.
Students should be able to describe the forces acting on the boat before and after the pennies are added.
Students will have to work within their budget and learn to iterate to produce a cost-effective boat that holds a maximum number of pennies.
1. Introduce the project and then introduce the students to the basics of buoyancy and density. We do a demonstration with items that will float and sink.
Time Estimate: 75 minutes
The 2016-2017 school year will be our first year with 5th grade students. We are excited to try a more in-depth version of this project with our 5th graders.