St. Lawrence River

The St. Lawrence River ____ the Great Lakes with the Atlantic Ocean.

• helps

• connects

• separates

• blocks

The St. Lawrence River is a huge producer of _____.

• hydroelectricity

• energy

• water

• hyperelectricity

It is also a major source of overseas and US-Canada ____ and trading.

• shopping

• swimming

• shipping

• sailing

• In 1959, the United States and Canada completed the St. Lawrence Seaway, which is a series of ____, ____, and _____ that allow huge cargo ships to travel from the Atlantic Ocean to the Great Lakes.

• dams

• locks

• canals

• boats

• The seaway has made cities in eastern Canada home to many _____ manufacturing companies.

• bad

• good

• unsuccessful

• successful

• Because of the climate, the St. Lawrence Seaway is closed from _____ to_____.

• April

• October

• November

• May

The St. Lawrence River is about ____ miles long from Lake Ontario to the Gulf.

• 700

• 744

• 750

• 746

The St. Lawrence River is the _____ biggest river in the world.

• 1st

• 15th

• 17th

• 10th

What was the purpose of building the St. Lawrence Seaway?

• To connect the Great Lakes to the international shipping routes

• To connect all the Great Lakes

• To connect the Great Lakes to the United States

• To promote economic development in the Great Lakes region

What are locks used for in bodies of water?

• To control the flow of water

• To create barriers for ships

• To raise and lower water levels for ships

• To provide drinking water for ships