University of Oregon
Welcome to the Pressure Chamber
This site has an online experiment for testing the ideal gas law.
Science Buddies
Science Buddies: Project Ideas: How Much Sugar Is Really in That Soda?
In this science fair project, use a precision hydrometer to measure the amount of sugar in soda. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a section on...
Science Buddies
Science Buddies: Project Ideas: What Makes Foams Stand Up Straight
In this food science fair project, students will determine which foods make good edible foams, with high volume and longevity. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and...
Science Buddies
Science Buddies: Buoyancy of Floating Cylinders
This project presents an interesting puzzle. A disk of wood will float face-up, that is, with its circular cross-section parallel to the surface of the water. A long log of wood, however, floats with the circular cross-section...
Science Buddies
Science Buddies: Sand Structure: Measuring Density and Porosity of Sand
For many kids, a day at the beach would not be complete without building a sandcastle. Have you ever wondered how it is that you can pack sand into a mold for a sandcastle? Do some kinds of sand pack better than others? This project will...
Science Buddies
Science Buddies: Ocean Currents: Modeling 'Global Conveyor Belt' in Your Kitchen
Ocean currents have a profound effect on the climates of the continents, especially those regions bordering on the ocean. The Gulf Stream makes northwest Europe much more temperate than any other region at the same latitude, and the...
Science Education Resource Center at Carleton College
Serc: Investigating Rocks: Seeing Your School's Area
In this earth science lab, young scholars will find, identify, and create a visual presentation of the rocks that are found around their school. They will determine the mass, volume, density, color, texture, and hypothesize what each...
Science Education Resource Center at Carleton College
Serc: Investigating the Effects of Density and Volume of a Cartesian Diver
In this instructional activity, young scholars will investigate why the Cartesian diver dives and rises in a 2 liter bottle. They will also, through their own discovery, come up with a question and then change one variable and record...
Science Education Resource Center at Carleton College
Serc: Layering Liquids
A lab activity to show students how different densities of liquid layer on top of each other by using four different colored liquids that contain different levels of salinity. This activity can also be used in an ocean unit where...
Science Education Resource Center at Carleton College
Serc: Irregular Shaped Object Lab Test
Students will determine what an unknown substance is by finding mass, volume, displacement, and density of an object. Students will also create a report which will require them to read a graph, interpret data, calculate averages, and...
Science Education Resource Center at Carleton College
Serc: Is All Ice Created Equal? A Density Lab
A lab experiment that shows students that different molecules melt in different ways. This lab also allows students to practice calculating and finding density, mass, and volume. Lesson plan includes lab handout for students.
American Chemical Society
Middle School Chemistry: Chapter 3: Density
Six interactive chemistry lessons about density complete with handouts and animations.
American Chemical Society
Middle School Chemistry: Density: Sink and Float for Solids
Students determine whether an object will sink or float by comparing its density to the density of water.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Buoyancy
An interactive simulation that teaches about buoyancy and density by applying various forces and modifying the properties of objects and fluids. This simulation can either be downloaded or played online and includes handouts, lesson...
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Density
An interactive simulation that teaches about density, mass, and volume through explorations of mass and volume with different objects. This simulation can either be downloaded or played online and includes handouts, lesson plans, and...
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Under Pressure
An interactive simulation that teaches about pressure, fluids, and density by observing changes in pressure under and above water with changes in variables including fluids, gravity, container shapes, and volume. This simulation can...
Vision Learning
Visionlearning: Physical States and Properties: Properties of Solids
Information about what solids are and properties associated with solid matter.
Other
New Dana System Mineralogy Database
Over 3,900 mineral species descriptions are included in this HTML-linked table of Dana classifications for all known valid mineral species. 3-D models are available for over 600 minerals.
Other
Ganoksin.com: Specific Gravity of Gemstones
Specific gravity is defined and explained. Practice problems are given and solved. Illustrations included as well.
Other
Foresty Suppliers: Using Forest Densiometers [Pdf]
Explains what a forest densiometer is, its history, and its use as a tool to measure forest overstory density, i.e., the area percentage that a tree canopy covers.
Other
National Engineers Week Foundation: Flinker
Students investigate with common objects to see if they can make something that neither floats nor sinks, but rather "flinks" in the middle.
Simon Fraser University
Chem1 Virtual Textbook: Understanding Density and Buoyancy
As part of a larger resource called "Getting started in Chemistry," this page examines various topics related to density and buoyancy. Included in the study are definition of density and buoyancy, measurements, applications, and examples.
US Census Bureau
U.s. Census Bureau: Puerto Rico Municipios Population
The U.S. Bureau provides this extensive text file on the estimated population of Puerto Rico by municipality from 1990 to 1999.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Plate Tectonics
Windows only - Interact with the tectonic plates of the Earth and see how changing variables affects the plates.