Answer both the QUIZ and WARM UP on notebook paper you pick up off

table.QUIZ

1.Draw a picture of the water cycle using the proper vocabulary (Precipitation, Collection, Evaporation, Condensation)

2.Predict what would happen in the water cycle if there were no clouds.

3.Are we ever going to run out of water? Why?

4.Does the water cycle happen in the desert? Explain?

WARM UPImagine that you are a producer and are in

charge of creating a game show or television show to teach a specific topic. Explain how you are going to get the main topics across to other students learning this topic . Brainstorm what main areas need to be taught. What materials would be needed? How long is episode/game? How are you going to present? How are you going to split class? How are you going to assess the learning? (PICK ONE TOPIC OFF THE BOARD)

CHAPTER 24 WATER

QUALITY pg. 31Essential Question: Explain why the water cycle is

important to survival?

STUFF ABOUT WATER

WATER DISSOLVES

MANY THINGSNEARLY “UNIVERSAL SOLVENT”

H2O

V-SHAPED POLAR MOLECULE WITH PARTIAL NEGATIVE MIDDLE (O-) AND PARTIAL POSITIVE ENDS (H+)

HYDROGEN BONDS

POSITIVE H ATOMS ATTRACT NEGATIVE O ATOMS FROM OTHER WATER MOLECULES

HELPS PLANTS PULL WATER UP STEM AS MOLECULES “HOLD HANDS”

DISSOLVING IN WATER

POLAR MOLECULES have PARTIAL POSITIVE and PARTIAL NEGATIVE SECTIONSSo, they DISSOLVE WELL in WATER

NONPOLAR MOLECULES are NEUTRAL ALL OVER

So, they WON’T DISSOLVE in WATERlike WAX or OIL or BUTTER

WAKE UP, EVERYONE !!!

CHEMICALS IN OUR WATER

CHLORINE to KILL BACTERIAFLUORINE for STRONG TEETHLEAD, IRON, COPPER

from PIPESACID (H+) from SOIL

EATS UP PIPESBASE (OH-) from CALCIUM and MAGNESIUM

NEEDED for HUMAN HEALTH

The WATER CYCLE(HYDROLOGIC CYCLE)

EARTH’S TOTAL WATER STAYS THE SAME

97% is SALT WATER2% is ICEONLY 1% is

FRESHWATER !!!

WHERE THE WATER IS-OCEANS-SURFACE WATER-GROUNDWATER in AQUIFERS

- ACIDIC with DISSOLVED MINERALS, but DISEASE-FREE

-VAPOR in ATMOSPHERE-COMES FROM EVAPORATION AND

TRANSPIRATION- CLOUD SEEDING to MAKE MORE

RAIN

WHAT HAPPENS TO WATER

EVAPORATION TRANSPIRATION from

PLANTSCONDENSATION in CLOUDSPRECIPITATION

RAIN, SNOW, HAIL, and SLEETCAUSE SURFACE RUNOFF

WATER QUALITYTEMPERATUREDISSOLVED OXYGEN

Fish Die if this is too low BIOLOGICAL OXYGEN

DEMAND (BOD)- Measures ORGANIC

MATERIAL in water

WATER QUALITYPh - ACIDIC or BASIC

Acid RainTURBIDITY (CLOUDINESS)NITRATE from DECAY

and FERTILIZERSPHOSPHATE - DETERGENTS

and FERTILIZERS

ALGAL BLOOMS

Too much Fertilizer (Nitrate or Phosphate) in Surface Runoff causes too much algae to grow

ALGAE use up OxygenFISH die from low oxygen level

BYE, Y’ALLDON’T WASTE WATER!!