Instructions: Review the Watersheds PPT and Flooding PPT. You may use your pollution notes from Tuesday to help as well. Then, answer the questions below.
Instructions: Review the Watersheds PPT and Flooding PPT. You may use your pollution notes from Tuesday to help as well. Then, answer the questions below.
Question 1
1.
Look at the picture of an ecosysems. Which things are biotic and which are abiotic?
Water
Dirt/Soil
Sun/sun's heat
Question 2
2.
What is the difference between a drainage basin and a watershed?
all the things in it that affect water bodies in a given drainage basin
an area of land in which water, sediments, and dissolved materials are transported or drained into a common outlet
climate, amount of rainfall,
geology and geography of an area (rocks, soil, hills, lowlands, forests), and human ac
human activies (urban and industrial develÂopment, agriculture)
Drainage Basin
Question 3
3.
What divides a watershed or drainage basin?
Question 4
4.
When it rains in a watershed, what can happen to the water? Place these into the correct order.
water flows over the Âland and infiltrates through dirt/soils
recharging/refilling the groundwater supplies
drainÂing into nearby bayous, streams, or rivers.
Question 5
5.
What happens if you spill gasoline in your driveway or leave dog poop in your yard?
Question 6
6.
What will have the LARGEST effect on the quaity of water in a bayou, stream or river?
Question 7
7.
What is the difference between urban city and rural country in watershed infiltration?
High number of impervious surfaces such as concrete that doesn't allow infiltration
Question 8
8.
What effect would these things have on the flooding problem in Houston?
Make canal systems that have a lof of winding curves that can easily become cluttered with debris.
Put in more parks with grasses and trees
Question 9
9.
Question 10
10.
Question 11
11.
The presence of macroinvertebrates that are intolerant to pollution in a stream indicates that the stream is healthy.
Question 12
12.
Taking samples of macroinvertebrates is chemical testing.
Question 13
13.
Pointsource pollution in which it is easier to identify the source.
Question 14
14.
Nonpoint source pollution enters streams and bodies of water by surface runoff and flooding.
Question 15
15.
Dams are only able to increase the level of a stream.
Air
Grass/Trees/Lily Pads
Snails/insects
Protozoa/Bacteria/Plankton
Mushrooms
Abiotic
Biotic
Watershed
Low number of impervious surfaces such as concrete that does allow infiltration
Less green space/less trees and plants to suck up water
More green space/more trees and plants to suck up water and slow water movement
Lots of soil infiltration to filter out pollutants so less pollutants in water supply
Very little soil infiltration to filter out pollutants so more pollutants in water supply
more surface runnoff and flooding and erosion
less surface runnoff aflooding and eroision
1/2 (50%) of all rainfall infiltrates into the soil to become groundwater
1/3 (33%) of all rainfall infiltrates into the soil to become groundwater
City/Urban
Natural/Rural/Country
Do not build homes in a floodplain
Make more green spaces permeable areas
Plant more trees and stop cutting them down
Build more roads and parking lots
Build retention ponds
Do not clean out storm drains
Make more impermeable areas.
More Flooding
Less Flooding
What are 5 ways that water can enter a stream? (Gaining Stream)
Stream joining another stream
Pumping from a well
Animals drinking
Drought
Groundwater Discharge (Flow up)
Evaporation
Plant root uptake
Snow Melt
Precipitation
Surface Runoff
What are 5 ways that water can leave a stream? (Losing Stream)
