Unit 7 Water
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Federal Water Pollution Control Act was created in the year: | 1948
🗑
|
||||
| Federal Water Pollution Control Act was revised in 1972 to become: | Clean Water Act
🗑
|
||||
| The Safe Drinking Water Act was created in: | 1974
🗑
|
||||
| How many drinking water contaminants did the Safe Drinking Water Act identify? | 33
🗑
|
||||
| The Wellhead Protection Programs were established in: | 1992
🗑
|
||||
| What did the Wellhead Protection Program do? | established guidelines for digging wells.
🗑
|
||||
| What is used in tertiary water treatment to clean the dirty water? | charcoal
🗑
|
||||
| Ozone is used to "oxidize" contaminants. What does "oxidize" mean? | an oxygen attaches to contaminant and neutralizes it.
🗑
|
||||
| The solids that settle to the bottom of settling ponds in primary & secondary water treatment: | sludge
🗑
|
||||
| Why is water in settling ponds smelly? | it has a HUGE BOD (very little oxygen)
🗑
|
||||
| List 3 ways sludge is disposed of: | 1) fertilizer 2) dumped in ocean 3) burned
🗑
|
||||
| In step 4 of water treatment, flocs are formed. What are flocs? | tiny, sticky particles that attract contaminant and sink to bottom of pond.
🗑
|
||||
| when water is aerated, what does that mean? | air is blown into water tank to form flocs.
🗑
|
||||
| this chemical is added to treated water to strengthen teeth. | fluorine
🗑
|
||||
| this chemical is used in water treatment to kill any remaining bacterial | chlorine (some places use ozone (O3)
🗑
|
||||
| It's estimated that ___% of underground storage tanks leak | 25
🗑
|
||||
| A high BOD value means: | LOW oxygen in the body of water; unhealthy
🗑
|
||||
| A pond is very healthy and has lots of plants and fish species. Is the BOD high or low? | LOW
🗑
|
||||
| Toxic chemical in gasoline that makes it deadly. | benzene
🗑
|
||||
| What is eutrophication? | excessive algae growth in a body of water.
🗑
|
||||
| What is the main cause of eutrophication? | an overload of PHOSPHORUS
🗑
|
||||
| List 3 human ways water is contaminated: | fertilizer & pesticide runoff; factory point pollution; leaking underground storage tanks
🗑
|
||||
| pollution coming directly from a pipe into a waterway. | point pollution
🗑
|
||||
| What is hard water? | water with tons of minerals in it such as calcium and potassium.
🗑
|
||||
| How is water made less pure NATURALLY? | minerals in rock
🗑
|
||||
| upper surface of groundwater that rises and falls dependin on the amount of rain. | watertable
🗑
|
||||
| the place underground where groundwater is held: | aquifer
🗑
|
||||
| Define watershed: | land area that drains into a body of water.
🗑
|
||||
| Define overdraft: | when more water is taken out of an aquifer than is put back in.
🗑
|
||||
| Define recharge zone: | the place on earth where water seeps into ground.
🗑
|
||||
| Where water seeps out of ground, also called a spring: | discharge zone
🗑
|
||||
| ____% of Americans get their water from public water plants. | 85
🗑
|
||||
| List the 3 main uses of water in the US AND the percentages! | 1) agriculture(51%) 2) industrial(38%) 3) domestic (10%)
🗑
|
||||
| What percent of the human body is made of water? | 65%
🗑
|
||||
| What are the 4 parts of the water cycle? | evaporation, precipitation, transpiration, and runoff
🗑
|
||||
| the # 1 domestic use of water? | flushing toilet
🗑
|
||||
| The industry that uses the most water: | mining
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
alihammond
Popular Science sets