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. Cool Tools Discrepant Events Kit 12 Amazing Demonstrations that Reveal the Magic of Science! Award-winning physics teacher Buzz Putnam shares his secrets to grabbing students’ attention and making them think! Discrepant events are really just magic tricks for science class, and we’ve collected a dozen favorites. This kit includes 6 ready-made demos and instructions to make 6 more from common items. We’ve even included a Teacher’s Guide and a video of Buzz himself, so you can perfect your own style and timing. Demo example: The Balloon Challenge shown above presents students with a question; If the air valve is opened between the larger and smaller balloons what will happen? Intuition says the larger balloon would continue to inflate the smaller balloon until equilibrium is achieved. But a discrepant event is one where the outcome is not what you expect! Get more details on this and the 11 other great demos included in this kit along with a sample video clip at www.arborsci.com. P6-6025 Discrepant Events Kit $99 ▲ Balloon Duel Challenge: When the valves are opened, what will happen? Maybe not what you think! Kit includes video of each demo. Watch, laugh, learn from the master, and amaze your students with science magic. Demo a Day Books Galileo’s Thermometer Our Galileo’s Thermometer is a great “attention getter” when discussing topics on pressure and fluids or the gas laws. Multi-colored globes inside the thermometer have gold tags that read from 64° to 80° Fahrenheit in 4 degree increments, combining beauty and accuracy. Non hazardous liquid filled, 340 mm (13.5") tall. P3-5006 Galileo Thermometer $19 Each spiral-bound volume contains nearly 200 terrific demonstrations designed by experienced teachers. See www.arborsci.com for more information on topics covered. Demo A Day for Chemistry is quickly becoming a classic “Must Have” for chemistry teachers! ▲ P8-0640 P8-0610 A Demo a Day for Physical Science By Borislaw Bilash II. 333 pages A Demo a Day, Volume 1 — A Year of Chemical Demonstrations By Borislaw Bilash II, George R. Gross, and John K. Koob. 291 pages. A Demo a Day, Volume 2 — Another Year of Chemical Demonstrations By Borislaw Bilash II, George R. Gross, and John K. Koob. 300 pages. $38.50 The lowest floating sphere’s tag shows the current temperature. P8-0620 $38.50 Balancing Bird Kids are always amazed when they see this bird balance on anything — its stand, a finger, even a nose! But it doesn’t defy gravity — it takes advantage of it. Thanks to two well-placed weights at the end of its wings, its center of mass is located below the tip of its beak, creating a stable equilibrium. Show students how deceiving an object’s center of mass can be, spin it on its stand to demonstrate rotational motion, or discuss movement in two systems by moving the stand through the air to add translational motion. Size 6" wingspan. P3-5002 Balancing Bird $2.95 10 or more $2.50 $38.50 See the Dynamic Celt on page 17. Now you can get our famous Celt with your own name or logo! Get details and prices online! Celt — Puzzling! A deceptively simplelooking piece of molded acrylic polystyrene provides a fascinating demonstration of center of gravity and physics. Tap one end, and the Celt will mysteriously begin to spin. Spin the Celt clockwise, and it will reverse direction. The real fun comes when your students begin to search for an explanation to this surprising phenomenon. P2-2120 Celt (Pkg. of 2) $3.95 61 To order visit arborsci.com