The percent- age of the earth's water that is fresh water. A The source of /^* energy for the hydrologic or water cycle. A Two possible j A ^* sources of | *** groundwater con- j water. tamination. I The chemical symbol for A. The name for a smaller stream that flows into a larger stream. The three largest oceans. What is 3? What is the sun? What are landfills and septic tanks? (other acceptable answers include; feed lots, human wastes, animal wastes, fertilizers, and aban- doned wells.) Q. What is hbO? What is a tributary? Q What are the Atlantic, Pacific, and Indian? The five Great Lakes. What are the * Huron, | Ontario, Michigan, I Erie, and Superior? A The process ^^* by which a vapor becomes a liquid or a solid. /"") What is con- * densation? A The wearing >^* down or washing away of soil and land by the action of water, wind or ice. Q. What is ero- sion? A The constant ^^* circulation of water from the atmosphere to the land and the oceans and back again. What is the water (hydro- logic) cycle? A The act of ^^* adding water to crops. What is irri- * gation? A The move- I y^* ment of j water down i through the earth's I surface. I What is infil- | * tration? ! (Percolation would also be an j acceptable answer.) : i A The capacity ! /^* of porous ! materials, such as I sand and gravel, to I transmit water. A A term used >^* to describe the area drained by a river and its trib- utaries. A Tanks used to '** hold waste from homes when a sewer line is not available. A pit, hole, or j A A change in * shaft sunk | ^^* the quality of into the earth to i water that makes it tap an underground | unsuitable for cer- source of water. i tain uses. Water-satu- I * rated lands | where aquatic j plants and animals j live. I What is per- meability? What is a * river basin? (Watershed would also be an acceptable answer.) What are * septic tanks? /""") What is a ^" well? What is pol- lution? (Contamination would also be an acceptable answer.) What are wetlands? ------- A A place where ^^* water is treated to make it safe to drink. £) What is a " water treat- ment plant? A The average ^^* number of gallons of water treated in the United States for each person every day. O What is * about 180 gallons? ^f^^h ' f A-:^ 9-12 \ -'|, •' !(,'•' \ ^-,-v-'-' ^ PRO^ Office ! A This element 1 i ^^* is added to i j water to prevent j 1 tooth decay. j | Q Whatisfluo- | I A The tempera- 1 1 ^^* ture at which j i water changes j i from a solid into a I ; liquid or vice versa, j j Q What is 32 | I * degrees | | Fahrenheit or 0 j ! degrees Celsius? i ^Water ) A & Q r A Lackofpre- i A On average, j A The percent- i A The percent- j ^^* cipitation f or i ^^* almost 26% i ^^" age of the i ^^" age of the I a long period of j of the water used j human body com- j earth covered with i time. i in a home is to do j posed of water. j water. i 1 this. | | | Q What is a JQ What is flush | Q What is |Q What is | 'drought? | * the toilet? j * 66%? 1 * 80%? | A The tempera- j j | | '^ ture at which j A, i A, i A, 1 water changes I i i I from a liquid to a I i i I gas or vice versa. I j I 1 Q What is 212 1 I I 1 ^*" degrees ! (J j Cj. i CJ. i Fahrenheit or 100 i i i I degrees Celsius? j i i i ri : * i A '[ A ! actsiA. |A. |A. i G^ m /^ ^ ! ! 'l C\ \\\ \^ i i i i icx i o. ic,;. i of Water (4606M) • EPA 816-F-04-025 • 06/2004 • www.epa.gov/safewater | j ------- |