without having the hardness testing machine
and other testing machine...
2006-10-19 02:31:25 · 6 answers · asked by presidency v 1 in Science & Mathematics ➔ Other - Science
if its metal its called a burnell tester.
2006-10-19 02:38:25 · answer #1 · answered by DASH 5 · 0⤊ 0⤋
The best way to do it is with materials of known hardness. For example, if you can scratch something with quartz, then you know it's not as hard as quartz. If you can scratch it with glass, then it's not as hard as glass. Once you find a material which will not scratch the material under test, then you know that the material under test is harder.
2006-10-19 02:37:30 · answer #2 · answered by Deirdre H 7 · 1⤊ 0⤋
By touching the material!
2006-10-19 02:33:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Good one kissawanta
2006-10-19 02:40:32 · answer #4 · answered by jekin 5 · 0⤊ 0⤋
Just toutch it... If it feels hard....it's ready baby...:)
2006-10-19 02:33:12 · answer #5 · answered by Kisawanta 1 · 0⤊ 0⤋
smack it on the wall! if it breaks, then, its not that hard....
2006-10-19 02:40:34 · answer #6 · answered by yacekiih 3 · 0⤊ 0⤋