Light Bulbs
Light bulbs produces light by heating a metal called filament. The
electric current forces its way through the thin part of the circuit and
the filament will glow and gives light to the bulb.
Make it work
Light bulbs comes in different size and shape. The glass of a light bulb
is very delicate, if you are trying to collect different light bulbs
make sure to keep it in a safe place or in a special box.
You will need
- old light bulbs
- scissors
- glue or tape
- cardboard
- ruler
Procedures:
- Choose the size of the box you want. Then cut it out in a
flat shape.
- Fold the cardboard along the dotted lines. Tuck in the
corner flaps and glue or tape them together.
- Carefully cut star-shaped slits in the top of the box. Press the ends
of the bulbs down into the centers of the stars. Make sure that the
bulbs fit firmly.
- Label your collection. Mark whether each bulb has a filament or a
fluorescent tube and also how bright it is. You can tell the brightness
of a bulb from the number of watts (W) of power that it uses.
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