Standard flashlight sized bulb with threaded base.
Standard flashlight sized bulb with threaded base.
Battery holders with 12" Lead wires, stripped ends. Sturdy plastic construction.
D, C, AA, and 9V models available with 12" Lead wires with stripped ends. Sturdy plastic construction. batteries not included
• Build a working crystal radio that will pick up radio stations
• Experiment with radio waves while learning chemistry basics.
• No batteries or soldering are needed.
• Includes: 1 diode, 1 base, four rubber bands, 1 tuning rod, 2 connecting wires, 1 coil wire, 1 sand paper, 1 earphone, three nuts, three bolts, four washers, 1 coil tube, 1 tuning ball and 1 instruction manual.
• Meets or exceeds ASTM F 963.
• Recommended for children ages 8 and up.
Kids can build a working crystal radio that will pick up radio stations and allow them to experiment with radio waves while learning chemistry basics. No batteries or soldering are needed. This package contains: 1 diode, 1 base, four rubber bands, 1 tuning rod, 2 connecting wires, 1 coil wire, 1 sand paper, 1 earphone, three nuts, three bolts, four washers, 1 coil tube, 1 tuning ball and 1 instruction manual. Meets or exceeds ASTM F 963. Recommended for children ages 8 and up. WARNING: CHOKING HAZARD-Small parts. Not for children under 3 years.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
By touching two metal strips simultaneously your body becomes a path for charged molecules to complete a circuit. Result: the ball glows brightly. Works with several people creating the path. When opened, the energy ball reveals a working circuit for insight into the world of computers.
12" x 12" Cotton Friction Pad.
12" x 12" Cotton Friction Pad.
12" x 12" Silk riction pad.
12" x 12" Silk friction pad.
12" x 12" Wool friction pad.
12" x 12" Wool friction pad.
Hard rubber, ebonite friction rod with rounded edges about 11 Inch (280mm) x 0.47 Inch (12mm) Length x Diameter. Measurements are approximate.
Hard rubber, ebonite friction rod with rounded edges about 11 Inch (280mm) x 0.47 Inch (12mm) Length x Diameter. Measurements are approximate.
12" Hollow glass friction rod. Approximately 1/2" in diameter.
12" Hollow glass friction rod. Approximately 1/2" in diameter.
12" Solid plastic friction rod. Approximately 1/2" in diameter.
12" Solid plastic friction rod. Approximately 1/2" in diameter.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
22 Gauge insulated copper wire. 100 ft. Color: Black
22 Gauge insulated copper wire. 100 ft. Color: Black
22 Gauge insulated copper wire. 100 ft. Color: Red
22 Gauge insulated copper wire. 100 ft. Color: Red
22 Gauge insulated copper wire. 100 ft. Color: White
22 Gauge insulated copper wire. 100 ft. Color: White
Plastic base, with brass screw type receptacle and two terminals.
Plastic base, with brass screw type receptacle and two terminals.
Extra flexible, rubber covered wire with insulated Alligator Clips on both ends. Includes 1 red and 1 black wire.
Extra flexible, 12 inch rubber covered wire with insulated Alligator Clips on both ends. Includes 1 red and 1 black wire.
Extra flexible, rubber covered wire with insulated Alligator Clips on both ends. Includes 1 red and 1 black wire.
Extra flexible, 24 inch rubber covered wire with insulated Alligator Clips on both ends. Includes 1 red and 1 black wire.