Your child is already interested in electricity and pulls it to make an interesting experiment? Make together with the child of an amusing and useful electric eel. It can be used to check what materials install electrical equipment. It is necessary to touch with two wires various materials: to metal, plastic, a foil - and to look whether bulbs will light up.
It is required to you
- - four cardboard tubes from toilet rolls
- - scissors
- - adhesive tape
- - paints
- - three bulbs on 1.5 V
- - three cartridges for bulbs
- - battery on 9 V
- - wire
Instruction
1. Paint tubes. When dry, cut three of them lengthways. In the middle pierce openings against cuts. Cut the fourth tube on two short halves.
2. Connect cartridges of bulbs consistently. Cut off still a wire of such length as all chain with cartridges.
3. Thrust bulbs in openings of three long tubes. Screw them in cartridges. An adhesive tape paste to walls of tubes all wires from within, including also free.
4. Connect tubes in a chain, sticking together them an adhesive tape along the cuts made at 1 stage. Paste free wires on one end an adhesive tape to the case of the battery. Then paste the battery an adhesive tape in a half of a tube.
5. In the last half of a tube make small openings and release through them other remained ends of wires. Wrap them around a pencil that spirals turned out. On a tube draw eyes.