The average pencil could draw a line 35 miles long.
A cubic yard of air weighs about two pounds.
Most avalanches travel downhill at a rate of 22 mph.
The only rock that floats in water is pumice.
Sand melts at 3,100 degrees Fahrenheit.
Scientific name for the dust we kick up when in motion: the “”Pigpen effect.””
The average smell weighs 760 nanograms.
Dry ice doesn’t melt. It evaporates.
One ton of iron can turn into three tons of rust.
Hot water weighs more than cold water.
Scientist don’t completely understand why thrown stones skip across water.
