Investigate objects that float and sink in water.

Students determine whether an object will sink or float by comparing its density to the density of water.

Predict and test everyday objects as to whether they sink or float.

A poem from Emily Dickinson, "If My Bark Sink", is provided on this site. Students may listen to this poem read aloud by Sophia On and can access a printable version of this piece.

At the online companion site of the PBS documentary series "THE WAR," read a description of the sinking of the USS Indianapolis in 1945. With links to related resources, including archive photos and series video.

A comprehensive summary with interesting facts about the sinking of the Lusitania passenger liner by a German U-Boat that drew the U.S. into WWI.

Why do hot air balloons float? This resource from the NOVA Web site offers a series of interactive activities that illustrates the physics of hot air balloons.

From a chapter on Fluid Statics in a Physics textbook. This section of the chapter provides a detailed discussion of Archimedes' principle, buoyant force, floating and sinking, and the role of density. Includes questions, problems and...

This activity asks young scholars to analyze evidence presented in the 'In the Matter of the Petition of the Oceanic Steam Navigation Company, Limited, for Limitation of its Liability as owner of the steamship TITANIC' case that began...

From ABC News in Science, Deborah Zabarenko's article explores the rising danger of the amount of carbon dioxide currently filling up the southern ocean around Antaratica.

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...

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...

Have you ever wondered how a ship made of steel can float? In this project you'll investigate how much weight boat hulls of various shapes and sizes can support without sinking.

As the website states, there is "everything but the kitchen sink" here. Find resources for art education, podcasts, museums and galleries around the world, an artist encyclopedia, student artwork, art schools, art blogs, architecture,...

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...

Take an historic tour through the world of radio from Marconi's first radio transmission to the beginning of television broadcasting. Read about how Marconi's invention of wireless telegraphy had an impact on those who survived the...

Most of us only know him as the brave captain of a sinking ship yelling out, "I have not yet begun to fight!" However, here is a more complete story of the trials and tribulations that John Paul Jones found in the service of his country.

Read about the sinking of the Titanic and learn to identify key ideas in multiple texts, review similarities and differences between those key ideas, and identify the difference between important and interesting key ideas. This...

Find out your or your students' understanding of fluid displacement. Afterwards you can see how others answered the questions.

Learners 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...

The Naval Historical Center offers straightforward facts and information from the US Coast Guard about the area known as "The Bermuda Triangle." While the site does not deny that there have been some disappearances and "traceless...

This site presents a procedure for creating a cartesian diver, a miniature submarine which rises or sinks depending upon the water pressure within a closed bottle. The site also introduces basic concepts of water and air pressure.

Use a condiment packet as a Cartesian diver to show how pressure changes cause the "diver" to float, sink or hover.

Young scholars will analyze claims filed by survivors, families of victims and owners of cargo of the Titanic disaster. They will examine claims for loss of life, loss of property and injuries that were filed as part of 'In the Matter of...