Lakes
Other Water
Ocean Currents
Waves
Coral Reefs
100

Lakes in the northern regions do this in the spring and fall.

What is turnover?

100

This percent of water on Earth is NOT in the ocean.

What is 3%?

100

What is the Great Ocean Conveyor Belt?

100

Waves carry this towards the shore.

What is energy?

100

Corals are this kind of organism.

What is an animal?

200

Lakes in tropical areas don't turnover because of this.

What is they never have cold dense water?

200

Water stored in cracks and pores.

What is groundwater?

200

What is the conveyor belt powered by?

What is salt, sunlight and wind?

200

Wave size is determined by wind speed, duration and this.

What is fetch? (How far it can blow.)

200

Zooxanthellae provide this to the coral polyp.

What is sugars (carbohydrates)?

300

This is the largest lake by volume.

What is Lake Baikal?

300

A body of water underground.

What is an aquifer?

300

Cold water does this.

What is sinks?

300

Waves can cause this on beaches.

What is erosion?

300

Warm water corals are not found beyond this latitude N and S.

What is 40 degrees?

400

These lakes on the border of the US and Canada are large and young.

What are the Great Lakes?

400

The largest aquifer in the US.

What is the Ogallala aquifer? 
400

Water becomes more salty because of this.

What is evaporation at surface and ice berg formation?

400

Building these can cause sand to build up on one side.

What is a jetty?

400

Reefs that form walls parallel to the shore.

What are barrier reefs?

500

The line/area that separates the warmer light filled water from the cold dark water.

What is the thermocline?

500

A well must go below this line that separates the saturated zone from the unsaturated zone.

What is the water table?

500

The Gulf Stream travels past the eastern coast of the US and heats up this area.

What is Great Britain and Europe?

500

Waves crash because of this.

They "trip" on the bottom which has gotten shallow.
500

Stinging cells in the tentacles of corals.

What are nematocysts?