American Chemical Society
Middle School Chemistry: Density Sink and Float for Liquids
See how different liquids can have different densities depending on their molecular make-up.
TeachEngineering
Teach Engineering: Density Rainbow and the Great Viscosity Race
Students explore the densities and viscosities of fluids as they create a colorful 'rainbow' using household liquids. While letting the fluids in the rainbow settle, students conduct 'The Great Viscosity Race,' another short experiment...
Science is Fun
Science Is Fun: Layered Liquids
An investigation into what properties liquids have that enable them to sit in separate layers in a container.
Science is Fun
Science Fun: Layered Liquids
This experiment allows you to dramatically demonstrate the different densities of five different common household liquids.
Science Education Resource Center at Carleton College
Serc: Floating Foods and Underwater Eruptions: An Exploration of Density
Learners explore the concept of density by investigating how several solids and liquids interact. Through hands-on activities and a teacher demonstration, they develop a greater understanding of density by using their observational...
Science Education Resource Center at Carleton College
Serc: Discovering Density Through Lava Lamps
Students first predict, then mix several liquids and then add salt to the mix, simulating a lava lamp.
Simon Fraser University
Chem1 Virtual Textbook: Densities of Substances and Materials
As part of a larger site called "Getting started in Chemistry," this site examines various topics related to the densities of substances and materials. Included in the study are properties of solids, liquids and gases, and how density is...
Michigan Reach Out
Reach Out Michigan: Are All Liquids the Same
This experiment demonstrates the density of selected liquids.
Science Museum of Minnesota
Science Museum of Minnesota: Thinking Fountain: Density
An introduction to density, mass, and volume with links to related books and activities.
American Chemical Society
Middle School Chemistry: Density of Water
Discover how the molecular make-up of water affects its density.
American Chemical Society
Middle School Chemistry: Temperature and Density
Learn how the molecular movement in different temperature water affects the density of the liquid.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Comparing Liquid Density
Because different liquids have different properties, density also differs. In this lesson from the Illinois Institute of Technology, students will calculate densities of water, dish-washing detergent, cooking oil, and other liquids.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Comparing Densities of Different Liquids
This lab experiment has students observe and compare the density of five different liquids while measuring mass and volume.
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.
My Science Site
Thinking Fountain: Liquid Layers [Pdf]
Students contrast the densities of oil and water in this lab activity. Can be done in groups or individually. This resource is in PDF form; requires Adobe Reader.
PBS
Pbs Teachers: Water Density
Demonstrate the effect that dissolving different amounts of salt in water has on the density of the liquid.
Other
The Science House: Daffy Densities
In this lab experiment, students will use 4 solids and 6 liquids to create colorful, layered rows demonstrating that less dense materials will float on top of the more dense materials.
McREL International
Mc Rel: Whelmer #64 Learning Activity: Liquid Rainbow
An easy to do activity that investigates density and solubility. The activity is presented in lesson plan format that meets NSES standards.
Khan Academy
Khan Academy: Biology: Specific Heat, Heat of Vaporization, and Density of Water
Why does ice float? In this article answer that question by learning about the topics of Specific heat capacity, evaporative cooling, and heat of vaporization of water.
Treehut
Suzy's World: How Come Some Liquids Don?t Mix?
This site from Suzy's World explores how and why certain liquids mix better than others. Content includes fun facts and a classroom experiment. This site also includes links to additional information on related subjects.
Science Education Resource Center at Carleton College
Serc: Mn Step: Sink or Float: All Liquids Do Not Have the Same Density
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...
Science Education Resource Center at Carleton College
Serc: Rainbow Challenge Lab
In this inquiry lab activity, learners will attempt to layer 6 different kinds of soda pops in a large test tube using their knowledge of density and other physical properties of liquids.
Science Struck
Science Struck: How to Find Volume With Water Displacement Method
Tells the story of how Archimedes discovered the Archimedes Principle and his water displacement method for determining the volume and density of an object. Provides an explanation and several examples of how it is done.
Climate Literacy
Clean: What Happens to Ice in Water?
Students investigate the properties of water in the ice and liquid phase as it relates to convection in the ocean and density driven circulation, and ultimately the climate.
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