1. Water Test Review

2. What is a rivers base level?
The normal water level of the stream.
What happens if this base level rises?
Flooding usually occurs……….where does this occur at?
A floodplain

3. What is a Drainage Basin mainly made of?
Land
What is a drainage basin?
The land that contributes water to a stream or ocean.

4. Groundwater is found underground in the zone of ______________
Saturation
What is the ground called that is not saturated?
Unsaturated
What is the process that water undergoes to become groundwater?
Infiltration

5. What is recharge (in reference to water?)
When it precipitates and water infiltrates underground

6. Why would it be good to limit building in a floodplain?
If you build in a floodplain you are reducing the areas of land that can allow for floodwaters to absorb back into the ground.

7. What is it called when water evaporates off plants?
Transpiration
There are materials that allow water to flow through them and others that don’t what are these two types of materials called?
Permeable or non-permeable
Give an example of each
Gravel / Clay

8. What is the unending circulation of earths water supply called?
The water cycle

9. What are pesticides?
A spray we use to protect agriculture from bugs.

10. What does a streams velocity and gradient have in common
What does a streams velocity and gradient have in common? (how do they effect each other)
The higher the gradient the quicker the velocity.
What is gradient?
The slope of a river.

11. What is acid rain?
Rain that usually contains high levels of Hydrogen Ions (pollution).
Where is acid rain usually found (what types of areas).
Usually densely populated areas that have a lot of pollution

12. What is a river that feeds into a larger river called?
A tributary.

13. How are some ways we can conserve water?
Turning water off when you brush your teeth.
Using water saving utilities

14. Where do we usually see pesticide runoff near?
Farms

15. Where on earth is most fresh water?
Glaciers/Antartica

16. What fuels the water cycle?

17. An imaginary line called a ____________ separates one drainage basin from another.
Divide

18. Artificial levees or dams are often built to control ___________
Flooding

19. What are the major steps of the water cycle? List them
Evaporation
Condensation
Precipitation
Infiltration

20. What is the water table?
The level of water underground; or the line between the saturated and unsaturated zone.

21. What is an artesian well?
A well that is free flowing because of pressure, it is between two aquitards (non - permeable layers).