What are the first steps when making a fuse-tester?

Thank you for using the Jiskha Homework Help Forum. There actually is a site for making a fuse-tester! :

http://atschool.eduweb.co.uk/trinity/projects/fusetest/tester.html

http://www.ectinschools.org/page.php?ps=27&print (ECT in schools)

wHAT IS sOLDER MADE FROM