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ELECTRICITY & MAGNETISM, continued
The Telegraph—Historical Inventions Laboratory Kit
Help your students recreate one of the first forms of “fast” telecommunication with the construction of a telegraph. Students will learn about electromagnets, circuits and Morse code and gain an appreciation for the speed at which we send and receive information today. Complete for 30 students working in groups of three.
AP8351 I $99.75
Investigating Electricity— Activity-Stations Kit
Discover the basic principles of electric-
ity with this “series” of four engaging, hands-on experiments. Explore the concepts of electric current and voltage in series and parallel circuits. Using friction rods, friction pads and an electroscope, learn about electrostatics. Then compare different elec- trochemical cells to determine which one produces the most electricity. Finally, deter- mine how the thickness and length of a wire affect its electrical resistance.
AP7019 I $151.45
FLINN SCIENTIFIC I ELECTRICITY & MAGNETISM
Resistance Mystery— Super Value Laboratory Kit
Use this guided-inquiry lab activity to inves- tigate the essential function of resistors in modern electronics. In this two-part “mystery” analysis, students first decode the color bands on a series of nine unidentified resistors to predict their resistance values. They then test their predictions by placing the resistors in series and parallel circuit combinations and measure the current and voltage. Students see how resistors help control the current to circuit components and split voltage to bring power to multiple components. Versatile and very affordable activity connects concepts and applications and will fit in any electricity unit. Super Value Kit is complete for 15 student groups. All materials are reusable!
AP7417 I $34.05
What Is a Capacitor?
Super Value Laboratory Kit
Capacitors are simple circuit components with advanced applications in modern electronic devices. Make these applications easy for students to understand by letting them “play” and learn with capacitors. What happens if
a capacitor is connected with a battery, a resistor and an LED? What if the resistor is changed to a higher or lower value? How will this affect the brightness and duration of the LED? Students investigate the properties and function of capacitors by using them to build and test simple circuits. Students discover how a capacitor stores and releases charge and electrical energy. Qualitative lab includes instructions for optional quantitative study using voltage probes.
AP7412 I $53.95
Build a Shake Flashlight—Demonstration Kit
Shake and light up your classroom! Engage your students by building a flashlight that doesn’t need batteries—it harnesses and stores the power of a handshake. Students see
a real-world application of Faraday’s law of magnetic induction and learn how to build a circuit. Neodymium magnets are shaken through 600 feet of coiled magnet wire, inducing an alternating current. Diodes converts the current from AC to DC, which is stored in a super- capacitor. Flip the switch, and the capacitor releases the stored energy in the form of light through an LED. Flashlight can be dismantled and reassembled. Includes all components to create one shake flashlight.
AP7320 I $58.65
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