1. Chapter 4: The Great Lakes: The U.S. & Canada’s Freshwater Treasure

2. How can people best use & protect Earth’s freshwater ecosystems?

3. (CONTINENTAL & ALPINE GLACIER)
A large mass of ice found near Earth’s poles or in high cold mountain valleys is called what?
GLACIER
(CONTINENTAL & ALPINE GLACIER)

4. “DID YOU KNOW THERE HAS BEEN THREE ICE AGES?”
Much of North America was covered in ice 20,000 years ago which is considered a what?

6. A community of all the loving things in an area & the environment in which they live (similar to a biome) is called a what?
ECOSYSTEM

7. Made up of water that is not salty; this term is also used to describe creatures that live in this kind of water. This referrers to what?
FRESHWATER
THE GREAT LAKES MAKE UP THE WORLD’S LARGEST FRESHWATER ECOSYSTEM ALMOST 21%

8. Where is the biggest area of fresh water in the world?
THE GREAT LAKES
HURON ONTARIO MICHIGAN ERIE SUPERIOR
Lake Michigan, is the only one of the Great Lakes to be entirely in the U.S. territory.

10. What do you know about the Great Lakes?
8 U.S. States border the Great Lakes.
Almost 21% of all the fresh water in the world is found in the Great Lakes.
There are over 3,500 different species within the Great Lakes.
They are also known as “America’s Inland Seas”.
They contain 23 quadrillion liters of water.

11. A geographic area that includes all of the land & waterways that drain into a body of water; sometimes called a drainage basin or what?
WATERSHED

12. The triangle-shaped deposit of sand & sediment that occurs where a river flows into an ocean is called what?
DELTA

13. All of the feeding relationships within an ecosystem where each living thing provides food energy to other living things within that ecosystem is called a what?
FOOD
WEB

14. Damage to the natural environment caused by harmful substances is known as what?
POLLUTION

15. A series of plants & animals, each of which depends on the one below it for food and is usually part of a food web; is called what?

16. POINT-SOURCE POLLUTION
Water pollution from a single place, such as a discharge pipe at a plant that treats sewage is called what?
POINT-SOURCE POLLUTION

17. A chemical or substance that is poisonous to humans or other living things is what?

18. NON-POINT SOURCE POLLUTION
Pollution that does not come from a single location, but rather from many sources such as runoff from farms is what?
NON-POINT SOURCE POLLUTION

19. Bits of soil left in a place by moving water is what?
Something that pollutes, or damages, air, soil, or water is called what?
POLLUTANTS
Bits of soil left in a place by moving water is what?
SEDIMENT

20. Water from rainfall that is not absorbed into the soil & instead flows into streams & lakes is what?
RUNOFF

21. Nonnative plants and animals that invade an ecosystem & challenge it is what?
INVASIVE SPECIES

22. Some Invasive Species that are known within the Great Lakes Region are…
ZEBRA & QUAGGA MUSSELS
PURPLE LOOSESTRIFE
SEA LAMPREYS
ASIAN CARP
ROUND GOBY
PRAGMATISTS

23. The natural environment in which a plant or animal lives is called its what?
HABITAT

24. An area where the soil is usually wet, damp or covered with water.
WETLAND

25. What is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted using a water well?
AQUIFER

26. The longest river in the United States is what?
MISSOURI RIVER
Hint:
it is NOT the Mississippi River (as it’s the widest)

27. What is the cutting of large areas of forests for human activities such as buildings for businesses & residential is called what?
DEFORESTATION

28. Is the gradual increase in the temperature of Earth’s surface over time is called what?
GLOBAL WARMING