|
Sound
travels through water 3 times faster than through
air.
A square piece of dry paper cannot be folded
in half more than 7 times.
Air becomes liquid at about minus 190 degrees
Celsius.
Hydrogen
gas is the least dense substance in the world.
Greek
astronomer Aristarchos said in the 3rd century
BC that earth revolves around the sun - but
the idea was not accepted.
A
lump of pure gold the size of a matchbox can
be flattened into a sheet the size of a tennis
court.
Natural
gas has no odor. The smell is added artificially
so that leaks can be detected.
|
caribbeanedu.com
