Drill 12/11/2013Calculate the amount of water in

the human population.1gallon of water = 8.33 lbsOr 1 liter of water = 1 kilogram

Fun Facts About H2O

Water is 800 times more dense than air

20% of global electricity is produced by hydropower

More than 90% of all renewable energy is hydropower

Water is the only thing on Earth that gets larger when it freezes (that’s why ice floats!)

70% of the human body is water

Water Power

The Big PictureUnit 1: Water Power

◦1.1 Hydro◦1.2 Wave◦1.3 Tidal

Grand Coulee Dam, Columbia River, Washington

Essential Questions (pt 1)

What is the water cycle?What drives the water cycle?

How much water on Earth & where is it?

How is flowing water an energy source?

Essential Questions (pt 2)

How can work be done with water?

What is hydropower & what’s the potential?

What are the pros/cons of hydro power?

How does hydropower affect the environment?

How much water is on Earth?

http://ga.water.usgs.gov/edu/earthhowmuch.html

•70% of Earth’s surface is covered by water•96% of all water on Earth is in the ocean•Only 2% of all water is fresh water

…but how much WATER is on Earth???

326,000,000,000,000,000,000 gallons

That much water would form a sphere about 860

miles in diameter!!!

That’s 40% of the size of the moon!!!

How much water is on Earth?

http://ga.water.usgs.gov/edu/earthhowmuch.html

…so there’s a lot of water on Earth. What of it?

Well, since a great deal of that water is in motion, we can use it to generate power.

That’s what! Water Power!!!

Water Power vs. HydropowerHydropower is often used to refer to all types of water power but in this class, we will use these definitions:

Water Power - general term for all power generated from moving water which includes hydro, wave and tidal power

Hydropower - energy generation derived from the kinetic energy of continuously flowing water

History of Hydropower

BC 14 AD

Used by Greeks to turn waterwheels for grinding wheat

Roman engineer Vitruvius credited with first written description of vertical water wheel

31 AD

Chinese engineer Tu Shih invented a water-powered reciprocator for the casting of iron agricultural implements.

Water power is being used extensively for grinding and pumping

History of Hydropower

182414 AD

French engineer Claude Bourdin coins the word, turbine

Roman engineer Vitruvius credited with first written description of vertical water wheel

31 AD 1700’s

Chinese engineer Tu Shih invented a water-powered reciprocator for the casting of iron agricultural implements.

Water power is being used extensively for grinding and pumping

History of Hydropower

1824

French engineer Claude Bourdin coins the word, turbine

1700’s

Water power is being used extensively for grinding and pumping

1880 1882

Lester Pelton obtains patent for Pelton wheel; 1st industrial use of hydroelectric power in Michigan;

Baltimore Polytechnic Institute was founded

1st hydroelectric powerplant on Fox River in Appleton, Wisconsin

What’s Coming Up?Water CycleHydroelectric PlantsHydropower & Water TurbinesImpacts on Environment/Society