Activity
Science is Fun

Science Is Fun: Sinking and Floating Soda Cans

For Students 4th - 6th
An experiment to determine if either a regular or a diet can of soda will float or sink when placed in water, and what causes this.
Lesson Plan
Utah Education Network

Uen: Will It Float?

For Teachers 1st
Learn why some things will float or sink.
Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Density in Relation to Float and Sink

For Teachers 3rd - 8th
Students find the densities of objects based on sinking or floating in this activity that demonstrates Archimedes Principle.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Water Activity

For Teachers K - 1st
Students investigate water by estimating how long it takes to freeze, then see if the ice cube will float in water, and eventually work with other items to see if they sink or float in water.
Lesson Plan
Utah Education Network

Uen: 1st Grade Act. 24: Interactive Writing

For Teachers K - 1st Standards
In this lesson, students will listen to nonfiction books about items that sink and float. Students will participate in filling in words to fill in a teacher-created chart that is connected to the information. Students will then write a...
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
Other

National Engineers Week Foundation: Flinker

For Teachers 3rd - 8th
Students investigate with common objects to see if they can make something that neither floats nor sinks, but rather "flinks" in the middle.
Activity
Science is Fun

Science Is Fun: Bowling Balls Float or Sink?

For Students 6th - 8th
In this experiment, you test whether two different bowling balls will float or sink, then determine the density of each of the balls to see if they are less than that of water.
Lesson Plan
Utah Education Network

Uen: Does Coke Float?

For Teachers 6th
Sixth graders predict if different types of coke will float or sink.
Lesson Plan
National Association of Geoscience Teachers

Nagt: Density Mystery Canisters

For Teachers 4th - 6th
Learners experiment with items that sink or float, and learn that water's density is equal to one, and objects/solutions with a density greater than one will sink, and those with a density less than one will float.
Activity
American Chemical Society

Inquiry in Action: Changing the Density of an Object: Changing Shape

For Teachers 9th - 10th
Throughout the activities in this investigation, students may have wondered how a boat made out of steel, which is more dense than water, can float. This activity addresses that question. Students will see that changing the shape of an...
Lesson Plan
Alabama Learning Exchange

Alex: Teaching Measurement: Literature and Manipulatives

For Teachers 3rd - 5th
The tradebook, Who Sank the Boat? by Pamela Allen, is an excellent tool in teaching measurement. Students will engage in activities involving different types of measurement. In the story, five animal friends decide to take a boat ride....
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Investigating Floating and Sinking: Density

For Teachers 3rd - 5th
This investigation introduces the concepts of volume, mass, and density and how they interact. Young scholars will make predictions of whether an object will float or sink after finding mass and volume of an object.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Sinking Water: Glaciers, Ocean Currents and Weather Patterns

For Teachers 3rd - 5th
A lesson where students learn how warm water is less dense than cold water, and what this means for global climate change as ice from the polar regions melts. Students will do experiments in buoyancy and water density when hot or cold,...
Unit Plan
Texas Education Agency

Texas Gateway: Ap Physics: Fluid Statics: Archimedes' Principle

For Students 11th - 12th
By the end of this section, you will be able to define buoyant force, state Archimedes' principle, understand why objects float or sink, and understand the relationship between density and Archimedes' principle.
Interactive
Sesame Street

Sesame Street: Games

For Students Pre-K - 1st
Help the Sesame Street characters while completing various early learning tasks. Students will develop language, reasoning skills, and independence as they play the games provided.
Interactive
PBS

Pbs: Sesame Street: Science

For Students Pre-K - 1st
A collection of interactives, videos, and documents on a variety science concepts.
Activity
Science is Fun

Science Is Fun: Dancing Raisins

For Students 4th - 8th
An experiment in buoyancy which involves making raisins float by using carbonated soda pop. Students then try the same test with other materials. Instructions for making one's own carbonated liquid are also provided.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Density of Solid Objects

For Teachers 9th - 10th
In this science inquiry, students investigate whether volume or density of objects determine the floating or sinking in water. Using a rock and a block of wood teachers engage students in the discussion of density, mass and volume.
Lesson Plan
Google

The Engineering Place: Balloon Flinking [Pdf]

For Teachers 3rd - 8th
A lesson and activity sheet on buoyancy. Students add weight to a helium-filled balloon to keep it suspended so that it won't float or sink, but instead will 'flink.'
Activity
Exploratorium

Exploratorium: Science Snacks: Condiment Diver

For Students 9th - 10th
Use a condiment packet as a Cartesian diver to show how pressure changes cause the "diver" to float, sink or hover.
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.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Solid and Liquid Density Investigation

For Teachers 1st - 3rd
For this activity, students investigate whether objects and liquids float or sink when placed in water. As they proceed, they will develop an understanding of what density is. Student handouts are provided.
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.