Properties of water
How many key properties of water are there
7
To a lot , separate or spread around the earth means
Water distribution
When chemicals and erosion wash into the ocean, where does the water come from?
Runoff
Earth like material can travel through something that is ....
Permeable ( Permability)
List 4 sources of water
Lakes, river , stream , ocean, estuary...
Unequal sharing of electrons
Polarity
_____ percent of the earths surface is water
71
What does rain mix with making it slightly acidic
Carbon Dioxide
A place where fresh water is stored on land
Aquifer
Rocks and minerals ___________ the water before it enters in the aquifer
Filters
When the same substance ( water molecules) stick together
Cohesion
Most of our freshwater is found here
Ice caps and glaciers
Openings in the sea floor that add heat and salt ( other gases ) to the ocean.
Hydrothermal vents
The Amount of Salt in water
Salinity
Where fresh and salt water mix
Estuary
The amount of energy it takes to raise the temperature by 1 degree Celsius
High Specific Heat
____________ of the earths water is salty
97%
Daily Double : Why is knowing the properties of water important
because we use water in several different ways
What do we call water that is drinkable and usable ?
Potable
Water is make up of molecules of
Hydrogen and oxygen
The amount of energy needed to cause 1 gram of liquid to change into vapor
High heat of vaporization
What percent of our lakes, rivers and streams are fresh water
1%
Daily Double : What does the word universal mean
Used all around the world
Our responsibility to take care of earths waters is called?
Stewardship
Water is considered a natural _________
resource