Curated OER
Barging Along
Students create a barge. In this technological design lesson, students use modeling clay to create a barge to hold marbles. Students make their barge then test it to see how many marbles it will hold. Students discuss why their design...
Curated OER
Salinity Lab
In this salinity activity, students simulate conditions of salt and fresh water mixing and observe the various densities of these solutions based on their salinity.
Curated OER
Buoyant Force
Students investigate the scientific concept of why some objects float when put in a liquid solution. They apply the laws of motion and force while conducting classroom activities. Students also take notes and answer target questions to...
![Cosi Columbus: Buoyant Bubble [Pdf] Activity](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Cosi Columbus: Buoyant Bubble [Pdf] Activity")
Center of Science and Industry
Cosi Columbus: Buoyant Bubble [Pdf]
Learn about density in this hands-on science experiment. Includes full list of materials, procedures, and scientific explanation of what makes an object float or sink. [PDF]
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Balloons & Buoyancy
Students studying buoyancy will better understand its concepts with this virtual experiment using various balloons and testing what makes them float or sink.
Exploratorium
Exploratorium: Science Snacks: Eyedropper Hydrometer
Deepen the students' understanding of density by constructing a simple hydrometer that can be used to compare the densities of different solutions.
CK-12 Foundation
Ck 12: Physical Science: Buoyancy
[Free Registration/Login may be required to access all resource tools.] Definition of buoyant force and how weight and density relate to buoyant force and the ability to float.
Physics Aviary
Physics Aviary: Practice Problems: Cargo Challenge Problem
Students figure out how much mass can be put in a boat without having the boat go fully under the fluid.
PBS
Pbs Teachers: Submarine Race Experiment
Balance the force of gravity with the force of the expanding gasses created by mixing baking soda and vinegar. Create a soda bottle submarine that sinks to the bottom of the bathtub and then rises back to the surface.
Annenberg Foundation
Annenberg Learner: 5 Question Survey: Rising and Sinking
Find out your or your students' understanding of fluid displacement. Afterwards you can see how others answered the questions.