Name........................................... Group.............................. Mark....................

Fill in the gaps using the words below...

circuit, 150, 200, 300, wire, flux, iron, melts, damaged, mains cables, fresh air, permanent, hot, sink, alloy, clean

Soldering is a _____________ method of connecting components in an electrical ____________.

Solder is an ___________of tin (60%) and lead (40%) that melts around _____°C.

The solder is used in the form of a _____________.

Soldering is easy if you follow these rules...

1. Make sure that work is ________, no dirt or grease. Use _________ to be sure.		2. Use the soldering _________ to make the joint _______so that the solder __________ and flows between the wires.
3. Ensure that the components are not ________ by heat. Here the crocodile clip acts as a heat ________ to protect the LED.		4. SAFETY Keep the hot soldering iron away from all _________ __________ Make sure that there is plenty of ______ _____ where you are working.