Page 17 - Demo

Your Safer Source for Science
ELECTRICITY, MAGNETISM, MOTORS & GENERATORS, CONTINUED
DC Motor
Just add 1.5–6.0 volts of power and watch this efficient little motor “hum” at 7000–11,000 rpm. Includes connecting wires with alligator clips. Optimum performance with 3.0–4.5 V.
AP6041 I $3.00
Simple Motor
The world’s simplest motor! Demonstrate the basic principles of electromagnetism with a bit of wire, a magnet, metal support stand and a battery.
AP7828 I $6.25
Introduction to Magnets— Super Value Laboratory Kit
In this hands-on introductory kit, students experiment with bar magnets to visibly see why magnets “stick” to certain objects but not others. They test magnetic polarity and deter- mine what types of materials are magnetic and which are not. Lastly, students sprinkle iron filings over the magnets to clearly display the invisible magnetic fields that surround all magnets. All materials are reusable.
AP6457 I $77.70
VFM0376
Magnets and Magnetism— Super Value Activity-Stations Kit
Explore the captivating world of magnetism with this all-in-one kit.
• Learn about the nature of magnets by classifying materials as magnetic or nonmagnetic.
• Bridge the world between electricity and magnetism by building an electromagnet.
• Investigate Faraday’s Law by building a simple galvanometer.
• Apply the concept of electromagnetism to construct a model of a working DC motor.
Introduction to Electromagnetism —Student Laboratory Kit
First, students will explore magnetic fields created by electric currents traveling through wires. Then students build an elec- tromagnet and experiment with its magnetic power. Finally, students construct a solenoid to generate electric current as a magnet drops through it. The electric current produced will be detected by a simple galvanometer that the students assemble with magnet wire and a compass. Complete for eight student groups.
AP7013 I $148.90
AP6271 I $90.45
FLINN SCIENTIFIC I MIDDLE SCHOOL PHYSICAL SCIENCE 15