Ecosystems Lesson 3: Mastery CHECK

Lakes are (a)  

• Small, flowing bodies of salt water
• Large, still bodies of fresh water
• Small, still bodies of salt water
• Large, flowing bodies of fresh wate

Lakes can be man-made or what?

• Natural

• Artificial

• Temporary

• Seasonal

What type of bodies of water are rivers?

• Still, artificial

• Flowing, natural

• Still, natural

• Flowing, artificial

What is a bay?

• A body of water surrounded by land on all sides

• A body of water surrounded by land on one side

• A body of water surrounded by land on three sides

• A body of water surrounded by land on two sides

What does a bay have that feeds into a larger body of water?

• A narrow mouth

• A wide mouth

• A deep mouth

• A shallow mouth

What type of body of water is an ocean?

• Small, fresh

• Large, fresh

• Small, salt

• Large, salt

Which of the following is a characteristic of a lake?

• Flowing water

• Surrounded by land on three sides

• Still water

• Narrow mouth

Which of the following is true about rivers?

• They are man-made

• They are still bodies of water

• They are natural bodies of water

• They are surrounded by land on three sides

What is the main difference between a lake and a river?

• Lakes are flowing, rivers are still

• Lakes are still, rivers are flowing

• Lakes are saltwater, rivers are freshwater

• Lakes are man-made, rivers are natural

Match the following types of water with their sources.

• Natural springs

• Saltwater

• Rivers and lakes

• Brackish water

• Estuaries

• Mineral water

• Oceans

• Freshwater