How many oceans are on Earth?

What is deepest of the Great Lakes?

What do liquids turn into when they evaporate?

What room in our homes do we use the most amount of water?

What is the world's largest ocean?

What is the longest river on Earth?

What does evaporated water form when it condenses?

What are low, marshy areas that actually make water cleaner?

What is the world's smallest ocean?

What are underground layers of the earth that hold water?

What storms brings water from the ocean to land?

What workers need water to grow the foods we eat?

What part of a continent is under water?

What do Americans use the majority of the water in their homes for?

What is rain that does not go in the ground?

Which country uses all the available fresh water to meet its needs?

What do we call the saltiness in water?

What is the percentage of Earth's water that is saltwater?

Which country gets 400 inches of rain in a year?

What special machines are built into dams to make electricity?