A battery-powered electronic quiz board is simple to make and you can use it again and again. To take the quiz, a contestant presses a paper clip against the bullet point beside a question, and another paper clip against the bullet point beside an answer. If the contestant gets the answer right, a bulb glows brightly. Once you have assembled the basic board, you can add different questions to create new quiz challenges whenever you like.
Make six holes down each long side of the sheet of card, using a hole punch. Space the holes as evenly as you can. Make sure the two sets of holes line up with one another, to give your quiz board a neat and tidy appearance.
Write six quiz questions on six sticky labels. Write the answers on six more labels. Stick each question onto the card sheet, next to one of the holes on the left-hand side. Stick each answer onto the sheet next to one of the holes on the right-hand side. Place the labels so questions and correct answers are never adjacent.
Cut a strip of foil 2cm (0.78in) wide and 22cm (9in) long. Fold the strip along its length to make a thick 1cm (0.4in) wide strip. Lay this strip across the back of the board, so it connects a question hole with its correct answer hole. Stick electrical tape over the top of the strip, to cover it completely and hold it in place.
Stick more foil strips to the back of the board with electrical tape, until each question has been linked to its answer. When you flip the board over, you should see silvery foil showing through each hole you punched, to create two sets of bullet points.
Line up two 1.5 volt batteries, so the positive end of one (marked +) touches the negative end of the other (marked -). Snap a rubber band around the batteries lengthways. Wind electrical tape around the batteries where they meet, to create a secure battery pack.
Cut three 35cm (14in) lengths of insulated copper wire, using wire cutters. Then use the wire cutters to strip away the plastic insulation from 1cm (0.4in) at either end of each wire, to leave bare metal. This ensures good electrical connections when you assemble your quiz board.
Take a wire and slip one end of it under the rubber band at one end of the battery pack. Twist the bare metal at the opposite end of the wire around one of the connectors that stick out of the LED like little legs.
Take the second wire. Slip the bare metal at one end of it under the rubber band at the unoccupied end of the battery. Twist the bare metal at the opposite end of the wire around a paper clip.
Punch a hole at the top of the board. Push the LED through it. Take the third wire and twist the bare metal at one end around the LED's remaining leg. Bring the free end of the wire to front of the board and twist the bare metal around another paper clip.
Test your board by pressing one paper clip against the foil circle beside a question and the other paper clip against the foil circle beside the correct answer. The LED should glow. If it doesn't, swap around the two wires connected to the battery and try again.
Stick new labels over the existing questions and answers when you want to create a new quiz.
Don't leave the battery pack connected when the board is not in use. Slide both wires out of the rubber band, to conserve battery power.
Tips and warnings
- Stick new labels over the existing questions and answers when you want to create a new quiz.
- Don't leave the battery pack connected when the board is not in use. Slide both wires out of the rubber band, to conserve battery power.
Things you need
- A4 sheet of thick card
- Hole punch
- Sticky labels
- Aluminium foil
- Electrical tape
- 2 batteries (1.5 volts)
- Rubber band
- Insulated copper wire
- Wire cutters
- 2 paper clips