Human body conductive ball electric ball electroscope diameter 10cm Primary School explore human body conductive experimental equipment

Capacitor charging and discharging tester high school physics teaching instrument student grouping electrical experimental equipment

Cohesion demonstrator 22202 lead force between molecules lead column solid intermolecular experimental equipment

Left and right hand rule demonstrator square coil explore the effect of magnetic field on current junior high school electromagnetic instrument

Cuboid group New curriculum standard material density comparison volume of copper iron aluminum Wood physical experiment equipment

Cube cube group cylinder group cuboid group copper iron aluminum Wood physical experiment instrument equipment teaching aids

Stress effect demonstrator new curriculum standard of middle school physics explores the relationship between stress area and pressure

Chemical experiment device magnetic teaching aids J26015 junior and senior high school chemical experiment equipment teaching instrument

Fluid velocity and pressure relationship demonstrator 21022 large junior and senior high school physics experiment equipment teaching instrument

Double knife double throw switch single knife switch small lamp holder copper iron series parallel circuit equipment teaching instrument for teaching

Hoof-shaped electromagnet demonstrator 24011 junior high school physics electromagnetism teaching instrument U-shaped large magnet

Electromagnet experiment device 24012 junior high school physics electromagnetism experiment equipment teaching instrument

Hydrogen fuel cell tester converts the chemical energy of hydrogen and oxygen into electric energy High School chemical experiment equipment

Rolling square wheel 80166 high school physics experiment equipment teaching instrument

Digital thermometer thermometer desktop digital display high school physics new curriculum standard experimental equipment teaching instrument

Strobe light source 12008 observe the state of fast reciprocating motion such as vibration high school physics experimental equipment

Electrolytic cell demonstrator 26023 ion exchange membrane high school chemistry experiment experimental equipment teaching instrument

Electrolyte solution conductive demonstrator tester high school physics exploration solution conductive experimental equipment instrument

Joule law demonstrator tester junior and senior high school physics experiment equipment teaching instrument

Discharge reaction experiment instrument 26035 high school chemistry experiment equipment teaching instrument

80162 three-track unexpectedly fast high school physics experiment equipment understand the working principle of dynamic potential energy teaching instrument

Axle model 31001 type physical mechanics experimental equipment teaching instrument

AC circuit characteristic demonstrator 24047-type high school physics experiment equipment teaching instrument

Mechanical energy thermal energy mutual conversion demonstrator 22205 type thermal energy mechanical energy mutual conversion experimental teaching instrument

Photoelectric effect demonstrator 25109-type photocell group high school physics experiment equipment teaching instrument

Safety electricity teaching board demonstration board demonstrator new curriculum standard 30307310601 physics teaching experimental instrument

Teaching signal generator 24028 type high school physics experiment equipment teaching instrument

Physical Experimental equipment for charge distribution on conductor in electrostatic equilibrium state of sharp cloth electrical appliance J2307

Pasca ball 21011 type demonstration liquid transmission to pressure physical experiment equipment teaching instrument

Vernier caliper outer diameter micrometer spiral micrometer physical experiment measuring length teaching aids teaching instrument

Demonstration adjustable internal resistance battery 23060 type adjustable pneumatic physical and electrical experimental equipment teaching instrument

24033 electric parallel straight conductor interaction demonstrator high school physics electromagnetism experiment teaching instrument

Metal mesh 23049 type verification electrostatic shielding principle experimental equipment teaching instrument for experiment

Teaching frequency sweeper J2469 high school physics experiment equipment teaching instrument

Fan's motor 23040-type fan's electrostatic motor high school physics experiment equipment teaching instrument

Oil film tester experimental equipment for measuring the molecular length of oleate physics experiment teaching instrument for junior and senior high schools