Click here to download the catalog as a PDF file. To view this site you need Adobe Flash Player and your browser must allow javaScripts. Go here to get the latest Flash Player. Can be used with Air or Water! Pressure & Fluids Demonstrate the Amazing Power of… Air! This specialized bottle is fitted with a balloon and a stopper. With the stopper in place, the balloon can’t be inflated. But remove the stopper, inflate the balloon, replace the stopper, and the balloon stays inflated! Next, fill the balloon with water and remove the stopper again. The spraying geyser that results will have your students thinking about air pressure in a whole new way. P1-2015 Pressure Globe $24.95 Simply pull out the stopper, fill balloon with water or air… When students see the power of atmospheric pressure in this demo they’ll be amazed. Use it with a great companion demo, our Atmospheric Pressure Mat on page 51. arborsci.com Watch a video clip of this dramatic pressure demonstration online. …Replace the stopper to hold the pressure. Then remove the stopper again and watch the learning and fun begin! Boyle’s Law Elasticity of Gases The perfect apparatus for verifying Boyle’s Law and other properties of gases. Simply add weights to the top block and measure the volume. Plot pressure vs. volume and get a hyperbola. P1-2075 Elasticity of Gases $12 Discovery Pack Gas Laws & Pressure Discovery Pack Don’t just teach the gas laws. Let students deduce them with these exploratory activities! Vortex Tube Bernoulli Bags Pascal’s Demo Pressure Pumper Vacuum Pumper Vacuum Chamber 2 Temperature Strips Hand Boiler Cartesian Diver Drinking Bird Elasticity of Gases Apparatus Atmospheric Pressure Cups Instructions & Lesson Ideas P1-2070 $99 Smokin’ example of the 1st law of Thermodynamics Using the Fire Syringe to compress air into a smaller volume is a classic example of how rapidly doing work on a gas results in an increase in temperature. Once you have inserted a small piece of combustible cotton fiber into the syringe piston, a quick firm stroke on the piston handle produces a flash in the chamber which burns as long as there is air present. The Fire Syringe comes with a stand up base, combustible fiber pack, and 2 replacement O-rings for the piston. P1-2020 Fire Syringe $19 SMOKIN’ A small wad of cotton bursts into flame when the air in a narrow tube is rapidly compressed. To order visit arborsci.com 49