SOMEBODY CALL THE DOCTOR! AN INTRODUCTION TO WATER HEALTH

WARM-UP Update your Table of Contents Write your homework! Get a list of Vocab Set 4 off the front table DateSession # ActivityPage # 10/2321Water Quality Indicator Note guide36 Water Diagnosis Chart37

There are PHYSICAL, CHEMICAL & BIOLOGICAL indicators that work together to determine the health of the water HOW DO WE KNOW IF OUR WATER IS HEALTHY?

TEMPERATURE Definition: How hot or cold the water is due to kinetic energy Healthy:The water is the right temperature to support the things that live in it. Unhealthy:The temperature is too high ( 97 0 F) or too low ( 32 0 F) and will hurt or kill things that live in it.

TEMPERATURE Causes: loss or gain of shade heat pollution seasonal changes/global changes Effects: decreased levels of dissolved oxygen (DO) increased bacteria levels increased algae growth

TURBIDITY Definition: A measure of how cloudy water is due to “stuff” in it. Healthy: Clear, clean water = 1 NTU Unhealthy: Sediment or pollution that makes the water cloudy = 5 NTU

TURBIDITY Causes: erosion run-off disturbance of water algae growth Effects: increased temperature decrease in DO clogs gills in organisms

PH Definition: The acid content of the water Healthy: Has to be the correct level for the type of water. Most Freshwater: 6.0  8.0 Unhealthy: Is not the right level for the type of water or to support life.

PH Causes: acid rain minerals washing into water Effects: death to sensitive plants and animals

PH MINI LAB Levels: 0  6 is acidic 7 is neutral 8  14 is basic

PH MINI LAB To demonstrate the idea of pH, you will test 4 things and record their pH level and determine if they are an acid, base or neutral: Lemon Juice WindexTap Water Your Mouth pH Value Acid, Base or Neutral?

DISSOLVED OXYGEN Definition: oxygen gas dissolved in the water Healthy: Right amount dissolved oxygen = lots of life 4-5 ppm is optimal Unhealthy:Low dissolved oxygen = little or no life

DISSOLVED OXYGEN Causes: increased temperature decaying plant matter Effects: less diversity of species fish kills

NUTRIENTS Definition: Something that is usually good, but can become toxic when there is too much Healthy: The right amount of nitrates, phosphates, sunlight = lots of life Unhealthy: Too many or not enough nutrients = little or no life nitrates = above 1 ppm phosphates = above.003 ppm

NUTRIENTS Causes: fertilizer run-off animal waste run-off detergent waste from industry Effects: EUTROPHICATION low DO

EUTROPHICATION FLOW CHART EXCESS NUTRIENTS  ALGAL BLOOM (POND SCUM)  DARKNESS BELOW SURFACE  PHOTOSYNTHESIS STOPS  DECOMPOSERS & OTHER ORGANISMS USE UP OXYGEN  DEATH

BIO-INDICATORS Definition: Macro-invertebrates that live in the water and are sensitive to pollution Healthy: A lot of bio-indicators = healthy water Unhealthy: Little or no bio-indicators = unhealthy water

BIO-INDICATORS Causes: increased levels of pollution Effects: damages food chain loss of organisms

MERCURY Natural element that has increased to toxic levels due to industry Usually affects people through eating fish from mercury contaminated water Causes kidney damage & brain/neurological disorders “GAME CHANGERS”

COLIFORM BACTERIA commonly found in water, soil and vegetation usually harmless but can indicate the presence of other harmful forms of coliform bacteria (fecal matter & E. Coli) “GAME CHANGERS”

YOU BE THE DOCTOR! Use the notes you just took to: 1)Diagnose the possible cause of the water issues on the Water Quality Checklist 2)Decide if the water is healthy or unhealthy

NEXT CLASS Thursday’s class will be shortened due to a speaker in the morning. Students who want to present their project can present Then we are going to start preparation for our trip to the creek.

VOCABULARY SPLASH All of the vocabulary words will be on the slide. Study the words for 30 seconds. Next slide will be missing 1 of the words from the original slide. Write down the word that is missing and its definition as quickly as possible.

Mercury pH Coliform Nutrients Temperature Turbidity Dissolved Oxygen

Mercury pH Coliform Nutrients Temperature Turbidity Dissolved Oxygen

mercury pH Coliform Nutrients Temperature Turbidity Dissolved Oxygen

pH Coliform Nutrients Temperature Turbidity Dissolved Oxygen

mercury pH Coliform Nutrients Temperature Turbidity Dissolved Oxygen

mercury pH Coliform Nutrients Temperature Dissolved Oxygen

mercury pH Coliform Nutrients Temperature Turbidity Dissolved Oxygen

mercury Coliform Nutrients Temperature Turbidity Dissolved Oxygen

mercury pH Coliform Nutrients Temperature Turbidity Dissolved Oxygen

mercury pH Nutrients Temperature Turbidity Dissolved Oxygen

HOMEWORK Vocab Set 4 – Day 1 Re-send presentations if you want to present on Thursday! Bring rain boots/shoes you can get dirty for class next Monday!

To prepare for our trip to the creek we need to collect observations about the topography and condition of the CHMS school grounds. (What goes on up here that may be affecting the creek at the bottom of the hill behind the school?) You may bullet point these observations, you may also wish to include sketches or pictures of areas that may impact the creek. Based on what you have observed, your knowledge of water quality indicators and the ways humans impact the hydrosphere….what can you predict is the condition of the creek water? What specific conditions do you expect to find? CHMS WATERSHED SURVEY