|
Nanofiltration is used to reduce hardness of this, caused by dissolved minerals like calcium & magnesium |
water
|
$800 |
DJ |
HARD SCIENCE |
2021-04-26 |
#8386 |
|
Neptunism was the idea this once covered the earth & all rock precipitated from it |
water
|
$400 |
DJ |
OLD-TIME SCIENCE |
2016-02-29 |
#7246 |
|
A hydrate contains this compound weakly bound in its crystals |
water
|
$800 |
DJ |
GENERAL SCIENCE |
2008-05-20 |
#5467 |
|
The Earth is the only planet in our solar system to have 2/3 of its surface covered by this |
Water
|
$100 |
J |
EARTH SCIENCES |
2001-06-19 |
#3882 |
|
A hydrate contains this compound weakly bound in its crystals |
water
|
$100 |
J |
GENERAL SCIENCE |
1993-07-05 |
#2051 |
|
It makes up about 99% of your sweat |
water
|
$100 |
J |
SCIENCE |
1992-12-22 |
#1912 |
|
Hygroscopic substances have a tendency to absorb this |
water
|
$100 |
J |
PHYSICAL SCIENCE |
1991-09-11 |
#1613 |
|
The only substance known to ancient man in solid, liquid & gas form |
Water
|
$200 |
DJ |
SCIENCE |
1989-09-20 |
#1158 |
|
By transpiration, some trees may lose a ton of this through their leaves in a single day |
water
|
$200 |
J |
SCIENCE |
1989-02-10 |
#1030 |
|
"Hydrohily" is pollination where the pollen is carried by this |
water
|
$100 |
J |
SCIENCE |
1988-06-27 |
#896 |
|
Hydrates are defined as compounds containing molecules of this |
water
|
$600 |
DJ |
PHYSICAL SCIENCE |
1987-05-14 |
#634 |
|
The most common compound on the Earth's surface |
water
|
$800 |
DJ |
SCIENCE TRIVIA |
1986-09-23 |
#467 |