answer both the quiz and warm up on notebook paper you pick up off table. quiz 1.draw a picture of...
TRANSCRIPT
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!!