PBS
Pbs: Buoyancy Basics
NOVA explores the basic principle of buoyancy. Also included at this site are some interesting brain-teasers related to the topic.
University of Hawai'i
Density (Lesson Plan)
The purpose of this lesson plan is to find the density of regular (volume can be with a mathematical formula) or irregular objects through water displacement. Uses actual SI units (g/cubed cm).
Illustrative Mathematics
Illustrative Mathematics: 6.g Computing Volume Progression 4
The purpose of this fourth task in a series of four is to find the volume of an irregular 3D solid by using Archimedes' Principle. Students must calculate the volume of the displaced water in a rectangular prism tank in order to solve...
Other
National Science Digital Library: Smile: Aesop's Arithmetic
A cross-curricular lesson integrating Aesop's The Crow and the Pitcher with an experiment testing the outcome of the fable using volume and displacement concepts.
Other
Sim Bucket: Density Lab
Use water displacement and a mass balance to determine the density of various objects in this interactive simulation.
PBS
Pbs Learning Media: Density Lab
Use water displacement and a mass balance to determine the density of various objects in this interactive simulation.
Utah Education Network
Uen: Does Coke Float?
Sixth graders predict if different types of coke will float or sink.
Other
Lapeer County Schools Science Resources: Density Lab
A simple lab experiment for students to find the density of two solids and a liquid (does not use water displacement). Note that number 1d should not state "weighs" since mass is being found.
Science4Fun
Science4 Fun: Tsunamis
Learn the causes of tsunamis, what happens during one, where they appear, and survival tips.