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
Science Education Resource Center at Carleton College

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

For Teachers 3rd - 5th
A instructional activity 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...
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.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Sink or Float: All Liquids Do Not Have the Same Density

For Teachers K - 1st
An experiment in density. After a review of floating and sinking of different materials, students test four bottles, all holding four ounces of water, to see if they will float or sink. They each contain a different density of sugar...
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.
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
Science Education Resource Center at Carleton College

Serc: Investigating Density in Solutions: How Can You Make an Egg Float?

For Teachers 3rd - 5th
For this activity, learners will learn about density by determining how to make an egg float in water. By the end of the lesson, students will understand that density and weight are different and that density matters in floatation. They...
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
National Association of Geoscience Teachers

Nagt: Density Mystery Canisters

For Teachers 4th - 6th
Students 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.
Interactive
PBS

Pbs: Sesame Street: Science

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