Lesson Plan
University of Florida

Florida Museum of Natural History: Investigating Water

For Teachers Pre-K - 1st
This guide engages children in the process of scientific inquiry using the context of a favorite early childhood pastime-water play.
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
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.
Lesson Plan
Utah Education Network

Uen: 1st Grade Act. 01: Exploration Tubs

For Teachers K - 1st Standards
In this lesson, students will investigate different categories related to safety, organisms, sink or float, boats, seeds, and water droppers. Students will use exploration tubs to make observations.
Activity
Museum of Science

Museum of Science and Industry: Online Science: Design a Submarine

For Students 3rd - 9th
Become an engineer, and design a submarine that moves in the water like a real submarine. Try making it sink, float, and hover in the water.
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....
Activity
PBS

Pbs: Buoyancy Basics

For Students 3rd - 8th
NOVA explores the basic principle of buoyancy. Also included at this site are some interesting brain-teasers related to the topic.
Activity
Bill Nye

Bill Nye: Eggs Speriment

For Students 1st - 5th
Try this at-home science experiment to learn if salt affects the way things float.
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
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
Michigan Reach Out

University of Michigan: Paper Clip Sailing

For Teachers 3rd - 8th
Basic experiment that helps students learn about surface tension.
Unit Plan
TeachEngineering

Teach Engineering: Floaters and Sinkers

For Teachers 7th - 9th
Through this curricular unit, students are introduced to the important concept of density. The focus is on the more easily understood densities of solids, but students may also explore the densities of liquids and gases. Students devise...
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: 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...
Activity
American Chemical Society

Inquiry in Action: Defining Density

For Teachers 3rd - 8th
Do heavy things always sink and light things always float? In this introductory demonstration and activity, students are introduced to the concept of density as they explore a rock and a wooden block in water.
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...
Activity
American Chemical Society

Inquiry in Action: Changing the Density of a Liquid: Adding Salt

For Teachers 9th - 10th
In this activity, students will see that a carrot slice sinks in fresh water and floats in saltwater. Considering the placement of the carrot slice in water and salt water, students will infer that the density of salt water must be...
Activity
American Chemical Society

Inquiry in Action: Changing the Density of a Liquid: Heating and Cooling

For Teachers 9th - 10th
In this activity, students will investigate whether the temperature of water affects its density. Students will place colored hot and cold water in a cup of room-temperature water to see that cold water sinks while hot water floats. Then...
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
TeachEngineering

Teach Engineering: Down With the Clip!

For Teachers 4th - 8th
Students see how surface tension can enable light objects (paper clips, peppercorns) to float on an island of oil in water, and subsequently sink when the surface tension of the oil/water interface is reduced by the addition of a...
Lesson Plan
TeachEngineering

Teach Engineering: Floaters and Sinkers

For Teachers 6th - 9th
This lesson introduces students to the important concept of density. The focus is on the more easily understood densities of solids, but students can also explore the densities of liquids and gases. Students devise methods to determine...
Lesson Plan
American Chemical Society

Middle School Chemistry: Chapter 3: Density

For Teachers 9th - 10th
Six interactive chemistry lessons about density complete with handouts and animations.
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.

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