Constructing school science lab equipment

• Cell holder;
• Bulb holder;
• Simple switches;
• Conductivity test;
• OHP coil;
• Friction blocks;
• Hydraulics demonstration;
• Angular momentum apparatus;
• Demo periscope;
• Graticule slides;
• Bell jar model lungs;
• Model of the plough;
• Apparatus for demonstrating osmosis;
• Torque demonstration;
• Making Charles Law tubes