Activity
Science Education Resource Center at Carleton College

Serc: Is All Ice Created Equal? A Density Lab

For Teachers 9th - 10th
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.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Investigating the Effects of Density and Volume of a Cartesian Diver

For Teachers 3rd - 5th
In this lesson, 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 their results....
Activity
PBS

Pbs Teachers: Hot and Cold Water Experiment

For Students Pre-K - 1st
Demonstrate the relationship between water temperature and density using two clear plastic soda bottles.
Activity
University of Chicago

Center for Astrophysical Research in Antarctica: Don't Be Too Flaky

For Students 3rd - 8th
After reading some facts about the properties of water, students conduct experiments to measure the relative densities of water, ice and snow and submit the results to the website.
Website
My Science Site

Life Systems: Cells, Tissues, Organs

For Students 9th - 10th
Extensive site for teachers provides some helpful resources that pertain to plant and animal cells. Includes a microscope diagram as well as plant, animal and pond labs. Also contains links to structures and mechanisms, matter and...
Activity
PBS

Pbs Teachers: Dancing Raisins Experiment

For Students Pre-K - 1st
Demonstrate buoyancy with raisins and club soda.