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.
Exploratorium
Exploratorium: Science Snacks: Condiment Diver
Use a condiment packet as a Cartesian diver to show how pressure changes cause the "diver" to float, sink or hover.
Science Education Resource Center at Carleton College
Serc: Mn Step: The Great Egg Drop: Relationship Between Gravity, Mass and Density
An interesting experiment in the relationship between gravity, density, and mass. Middle schoolers must devise a way to drop a milk carton containing two raw eggs off a roof 50 feet high, without breaking the eggs. They then write a...
![Cosi Columbus: Buoyant Bubble [Pdf] Activity](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Cosi Columbus: Buoyant Bubble [Pdf] Activity")
Center of Science and Industry
Cosi Columbus: Buoyant Bubble [Pdf]
Learn about density in this hands-on science experiment. Includes full list of materials, procedures, and scientific explanation of what makes an object float or sink. [PDF]
Other
Science Alive: Repeating Experiments
In this lab activity, learners are required to write a procedure to be followed in a simple lab process and record the results they get from following that procedure. They then exchange procedures with another lab group, which will have...
SEDL
Oceans [Pdf]
This large PDF file integrates math, science, and language into several lessons about characteristics of the oceans. Topics include ocean currents, tides, density, marine life, and pollution.
Khan Academy
Khan Academy: The Quantum Mechanical Model of the Atom
An explanation using quantum mechanics to describe the atom.