Discovery-Based Teaching Tools to Fuel Your Students' Desire to Explore
bookmark this page
Sign In Shopping Cart Checkout
Here's what our subscribers say about the CoolStuff Newsletter...
"I sent CoolStuff to a new teacher I'm mentoring. I use CoolStuff all the time and love it. The kids love it and learn from it!" ~ Dixie D. from Texas
Get more information
Arbor Labs Books, Video & DVD Chemistry Conceptual Physics Conceptual Physics Labs Cool Tools CoolStuff Newsletter Electricity Electrostatics Elementary Science Supplies Energy Force & Motion Holography Labware Lasers Light & Color Magnetism Measurement New Products Pressure & Fluids Software Sound & Waves
Density Rods
The Density Rod Set consists of two rods. The aluminum rod sinks in warm water and floats in cool. This is because cool water is more dense than warm, and the aluminum rod is made to be between those two densities. The PVC rod does the reverse – floats in warm water and sinks in cool. This time, the rod changes more than the water, becoming more dense when it is cool.
Click here for applicable science standards
Required Equipment Balance, Film Canisters, Pennies, Tape
Download Teacher Notes and Student Worksheets
Back to Main Lab Menu
Recommended quantity per lab group: 1
The "food coloring and rubbing alcohol" required for this lab is readily available at grocery store. Each lab group would need one container of each.
Home Customer Service Events Quick Order Newsletter Check Out © Arbor Scientific 2008 All Rights Reserved