1. Review for Earth Science Chapter 11 Fresh Water
Vincent Eblacas
Untalan Middle School
SY 2017 to 2018

2. Earth Science Chapter 11 Fresh Water
How of the earth’s water is salt water and how much is fresh water? (5 points)
97% is salt water and 3% is fresh water

3. Earth Science Chapter 11 Fresh Water
What are the 3 major areas that fresh water is found? (15 points)
Icebergs
Rivers
aquafers.

4. Earth Science Chapter 11 Fresh Water
Diagram the water cycle. (30 points)
Evaporation
Condensation
precipitation.

5. Earth Science Chapter 11 Fresh Water
What are the 5 major categories of water use? (15 points)
Household purposes---bathing and cooking
Agriculture----growing food
Industry---making stuff
Transportation----moving stuff
Recreation—swimming and boating

6. Earth Science Chapter 11 Fresh Water
What are the 3 major reasons why organisms need water? (15 points)
To grow since an organism is 2/3 or more water.
Reproduce—many organisms such as fish and frogs will spawn in water
carry out other life functions----all organisms need water to do the required chemical reactions to maintain metabolism.

7. Earth Science Chapter 11 Fresh Water
What is the relationship of rivers and tributaries? (5 points)
Tributaries are smaller streams that feed into a river.

8. Earth Science Chapter 11 Fresh Water
What is the difference between a watershed and a divide? (10 points)
Watersheds are where water gathers, divides are ridges that separates the watersheds.

9. Earth Science Chapter 11 Fresh Water
What is a flood? (5 points)
A happens when water gathers faster than it can be drained.

10. Earth Science Chapter 11 Fresh Water
What is the difference between a pond and a lake? (10 points)
Ponds are small bodies of fresh water while lakes are big bodies of fresh water.

11. Earth Science Chapter 11 Fresh Water
What is eutrophication? (5 points)
Eutrophication is when there is an overgrowth of algae which collapses the local ecosystem.

12. Earth Science Chapter 11 Fresh Water
What is an aquifer and how do we use them? (15 points)
Aquifers are the underground water sources.
They can be used by drilling down into them which creates a well or they can be exposed in certain areas known an artesian well.

13. Earth Science Chapter 11 Fresh Water
Why are wetlands important? (15 points)
Wetlands provide habitat
they control flooding
can process some pollution.