The scientific term for rain, snow, sleet and hail.
What is Precipitation?
300
This percentage of the Earth's surface is covered by water.
What is 71%? (will accept anything between 68 and 74%)
300
This is the name for the process of water ridding itself of organic pollutants after human sewage is released into rivers.
What is self-purification?
300
Water occurs in these three forms.
What is Solid, Liquid and Gas?
400
The ability to use water in the Western US does not depend on land ownership but this doctrine instead.
What is prior use, or first use doctrine?
400
This physical property of water can be used to explain why solid water (ice) floats on top of liquid water.
What is density?
400
A piece of glacier that has broken off into a body of water.
What is an Iceberg?
400
Sweating, crying and going to the bathroom are all ways your body does this.
What are ways your body eliminates water?
400
Pure-ish water generally has a neutral pH, meaning that it measures around this number.
What is 7?
500
Bodies of water cannot be privately owned. Instead, in the eastern united states landowners are granted this, which enables them to use the water on their property.
What are water rights?
500
Water has two important uses in the generation of electricity. Name them both.
What are moving turbines and coolant?
500
The direction that all known rivers flow in.
What is towards the center of the Earth?
500
The build up of this toxic metal at the upper levels of the food chain is a serious concern for those fishing in San Francisco Bay.
What is mercury?
500
Water molecules are this, meaning that one end of the molecule is slightly positive in charge and the other end is slightly negative.