I am looking for a kind material that has the following properties:
- isn't gas or fluid
- doesn't react with water
- doesn't have negative effects on humans
- has low weight and doesn't sink in water
- Has a similar or smaller density than water.
- Is solid, it isn't powder or something you can crush when you touch it
If your answers won't fit i'll add more details. Thanks in advance.
2007-09-27 03:59:58 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
Ice melts in water so it doesn't fit.
Human skin - Right but not the *ekhem* material i'm looking for.
Pumice is too weak. a tough hit can make it go to pieces so it doesn't fit.
Wood isn't a good one since it rots if it's too long in water. The pressure-treated wood isn't a bad idea... I might think of it.
Polistyrene - Let's in water so it doesn't fit.
As so far pressure-treated wood seems the best for that... If you find something that goes right with the above properties , tell me.
2007-09-27 04:46:25 · update #1
A plastic foam coated with thin, dense plastic or fiberglass does well. Boat hulls and surfboards are made that way.
2007-09-28 18:37:16 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
Human Skin or High Density Styrofoam
2007-09-27 11:08:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
How about pressure-treated wood? Or Polystyrene?
2007-09-27 11:09:05 · answer #3 · answered by Toledo Engineer 6 · 0⤊ 0⤋
wood
2007-09-27 11:08:45 · answer #4 · answered by dhdaddy2003 4 · 2⤊ 0⤋
pumice is the only one i can think of
2007-09-27 11:08:11 · answer #5 · answered by randall g 3 · 0⤊ 0⤋
ice
2007-09-27 11:07:58 · answer #6 · answered by cdrotherham 4 · 2⤊ 0⤋
aluminium?
2007-09-27 13:00:40 · answer #7 · answered by Debbie J 2 · 0⤊ 0⤋