2006-08-28 07:14:39 · 28 answers · asked by CKRT SQRL 5 in Science & Mathematics ➔ Biology
The enamel on your teeth is rated as 5.5 on the commonly described scale of 1 to 10 (1-talc, 2-gypsum, 3-calcite, 4-fluorite,5-apatite, 6-orthoclase, 7-quartz, 8-topaz, 9-corundum, 10-diamond). You can bite apatite, but watch out for orthoclase or higher on the scale. Corundum is the substance that composes most non-diamond precious stones.
2006-08-28 08:20:49 · answer #1 · answered by Nowayjose 3 · 0⤊ 0⤋
Tooth enamel is the hardest substance in the body.
Your teeth are covered in enamel, which is the hardest substance in your body. It covers the exposed part of your teeth above your gum. The roots of your teeth are fixed into a socket in your jawbone.
2006-08-28 07:25:49 · answer #2 · answered by Spuddy 2 · 0⤊ 0⤋
the outer layer of the teeth is the hardest substance present in a human body
2006-08-28 07:22:06 · answer #3 · answered by pappu 2 · 0⤊ 0⤋
I could tell you what the hardest substance is on MY HUMAN body, but someone with delicate sensibilitites would probably report me.
TFTP
2006-08-28 07:21:46 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Your teeth are covered in enamel, which is the hardest substance in your body.
2006-08-28 07:20:33 · answer #5 · answered by Jessi 7 · 1⤊ 0⤋
Teeth is partly correct. It is only the outside- enamel, that is the hardest. Inside is much softer in comparison.
2006-08-28 07:20:23 · answer #6 · answered by haha 4 · 1⤊ 0⤋
"The tooth, the hardest organ in the body, is known to be formed through highly elaborate, unique processes of differentiation and development."
2006-08-28 07:21:22 · answer #7 · answered by Paul 7 · 0⤊ 0⤋
Bone
2006-08-28 07:17:08 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Teeth?
2006-08-28 07:17:51 · answer #9 · answered by LuLu 3 · 0⤊ 0⤋
Brings to mind the saying "hard headed".
2006-08-28 07:20:55 · answer #10 · answered by Anonymous · 0⤊ 0⤋