Activity
PBS

Pbs Teachers:mysteries of the Deep: Leaky Seal

For Teachers 3rd - 8th
Investigate the mystery of the sinking of the Confederate submarine Hunley. Explore the mechanics of waterproofing a seal, and compare and contrast the effectiveness of a metal-to-metal seal versus one that uses a rubber gasket.
Activity
PBS

Pbs Teachers: Submarine Race Experiment

For Students Pre-K - 1st
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.
Lesson Plan
Alabama Learning Exchange

Alex: What's the Matter: A Sinker or Floater?

For Teachers Pre-K - 1st
Students will explore matter that sinks or floats when submerged in water and that matter is categorized as either a sinker or a floater. Students will work actively in small, cooperative learning groups as well as gather in a whole...
Activity
Staten Island Children's Museum

Staten Island Children's Museum: Sea of Boats

For Students Pre-K - 1st
Use this activity guide to discover about boats and learn some water science.
Activity
TeachEngineering

Teach Engineering: Clay Boats

For Teachers 7th - 9th
Each student uses a small quantity of modeling clay to make a boat that will float in a tub of water. The object is to build a boat that will hold as much weight as possible without sinking. In the process of designing and testing their...
Activity
Middle School Science

Mss: Density Demonstration: Coke vs. Diet Coke

For Teachers 6th - 8th
In this demonstration, students will brainstorm to find a solution as to why Diet Coke floats and Coke sinks. Through this exercise students will arrive at a definition of density.
Interactive
University of Colorado

University of Colorado: Ph Et Interactive Simulations: Balloons & Buoyancy

For Students 9th - 10th
Experiment with a helium balloon, a hot air balloon, or a rigid sphere filled with different gases. Discover what makes some balloons float and others sink.
Activity
Science is Fun

Science Is Fun: The Cartesian Diver

For Students 3rd - 5th
A simple experiment in buoyancy where you discover how to make a packet of sauce or candy float or sink at will, and why you are able to do this.
Interactive
Center for Innovation in Engineering and Science Education, Stevens Institute of Technology

Stevens Institute of Technology: Buoyancy Simulation

For Students 9th - 10th
By choosing the mass, size, and time, students can experiment with whether the block floats or sinks in this simulation. Students have the option to display the forces and add a second block to the tank. Density is also shown to allow...
Interactive
University of Colorado

University of Colorado: Ph Et Interactive Simulations: Balloons & Buoyancy

For Students 9th - 10th
Students studying buoyancy will better understand its concepts with this virtual experiment using various balloons and testing what makes them float or sink.
Activity
American Chemical Society

Inquiry in Action: Changing the Density of an Object: Adding Material

For Teachers 9th - 10th
In this activity, students see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float. This high-volume but light-weight material increases...
Activity
American Chemical Society

Inquiry in Action: Compare the Density of an Object to the Density of Water

For Teachers 9th - 10th
In this activity, students use tea light candle holders and a student-made balance to compare the weight of equal volumes of wax, water, and clay. Students will discover that since the wax weighs less than an equal volume of water, it is...
Unit Plan
Mocomi & Anibrain Digital Technologies

Mocomi: Buoyancy

For Students 1st - 7th
Ever wonder why/how things float? This concept is called buoyancy. Take this interactive journey to learn and understand how and why certain materials float and others sink to the ocean floor.
Activity
Center of Science and Industry

Cosi Columbus: Buoyant Bubble [Pdf]

For Students 3rd - 8th
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]
Activity
My Science Site

Density Demonstration: Coke vs. Diet Coke [Pdf]

For Teachers 9th - 10th
Help students brainstorm and find a solution as to why Diet Coke floats and Coke sinks. Student will learn to define what density is as they engage in this creative lab. This resource is in PDF form; requires Adobe Reader.
Interactive
CK-12 Foundation

Ck 12: Chemistry Simulation: Going Fishing

For Students 9th - 10th
[Free Registration/Login Required] Students will be able to change the mass and volume of an item and observe if it floats, sinks, or remains at a certain depth in the water. Students will also be able to change the liquid in level 2.

Other popular searches