Our Watershed Our Watershed PresentationPresentation

Created and Presented by:Created and Presented by:Isaac, Luke, Kaelynne, Paola, Isaac, Luke, Kaelynne, Paola,

Brianna, Ashley, Darien, Brianna, Ashley, Darien, Peter, Irwin, Kaitlyn & GiannaPeter, Irwin, Kaitlyn & Gianna

What is What is Water?Water?

•1 oxygen 2 hydrogen atoms1 oxygen 2 hydrogen atoms

•Roughly 70% of our planetRoughly 70% of our planet

•Largest component of the Largest component of the human bodyhuman body

•Essential for life on earthEssential for life on earth

What is Water What is Water Quality?Quality?

•The amount of contaminates The amount of contaminates

•Half comes from surface waterHalf comes from surface water

•Half comes from ground water Half comes from ground water

•79,000 water utilities 79,000 water utilities supplying 230 million peoplesupplying 230 million people

•20-40 million use private wells20-40 million use private wells

Scientific MethodScientific Method

QuestionQuestion ResearchResearch HypothesisHypothesis Test ProcedureTest Procedure ResultsResults ConclusionConclusion

QuestionQuestion–Is there a difference in Is there a difference in quality between quality between Niagara, Brita, Crystal Niagara, Brita, Crystal Geyser and tap water?Geyser and tap water?

HypothesisHypothesisBrita bottled waterBrita bottled waterTap water (from our Tap water (from our

watershed)watershed)Crystal GeyserCrystal Geyser Niagara bottled waterNiagara bottled water

ProcedureProcedure

We discussed what we wanted to We discussed what we wanted to know more aboutknow more about

Decided on a variety of water samplesDecided on a variety of water samplesTested pH, alkalinity, chlorine, Tested pH, alkalinity, chlorine,

hardness, iron, copper, nitrates, hardness, iron, copper, nitrates, nitritesnitrites

Graphed and compared resultsGraphed and compared resultsMade charts and this PowerPointMade charts and this PowerPoint

MaterialsMaterials

• Water Monitoring test Kit

• Brita bottled water

• Crystal Geyser bottled water

• Tap water from our sink at school

• Niagara bottled water

ResultsResultsTap Water Aquafina Arrowhead Kirkland Stater Bros

Alkalinity 240 High 0 Low 240 High 40 Low 0 Low

pH 7.5 Safe 0 Dangerous

7.5 Safe 5 Caution 5 Caution

chlorine .2 Safe 0 Safe 0 Safe 0 Safe .2 Safe

Hardness 50 Ideal 0 Soft 0 Soft 50 Ideal 0 SoftIron 0 Low 0 Low 0 Low 0 Low 0 lowCopper 0 Safe 0 Safe 0 Safe 0 Low 1.3 Safe

Nitrites 0 Safe 0 Safe 0 Safe 2 Caution 0 safe

Nitrates 0 Safe 0 safe 0 Safe 0 Safe 2 Safe

Results Results (continued)(continued)• pH –  Drinking water with a pH

below 4 or above 11 can cause skin, eye, and mucous membrane irritation. 

• .Alkalinity– Creates a high level of metals that is considered dangerous.

• Chlorine– Toxic when consumed, inhaled, or applied to the skin.

• Hardness – Hard water may improve cardiovascular health.

• Iron–High levels cause abdominal and bowel problems.

• Copper -  vomiting, diarrhea, stomach cramps, nausea, liver and kidney disease.

• Nitrites – Infants especially susceptible to poisoning. Causes stomach problems in adults.

• Nitrate – a nutrient needed by aquatic plants/animals. Sewage is main source of excessive nitrates. Nitrates over 10 ppm & Nitrites over 1 ppm can have fatal results.

ResultsResultsTap Water Aquafina Arrowhead Kirkland Stater Bros

Alkalinity 240 High 0 Low 240 High 40 Low 0 Low

pH 7.5 Safe 0 Dangerous

7.5 Safe 5 Caution 5 Caution

chlorine .2 Safe 0 Safe 0 Safe 0 Safe .2 Safe

Hardness 50 Ideal 0 Soft 0 Soft 50 Ideal 0 SoftIron 0 Low 0 Low 0 Low 0 Low 0 lowCopper 0 Safe 0 Safe 0 Safe 0 Low 1.3 Safe

Nitrites 0 Safe 0 Safe 0 Safe 2 Caution 0 safe

Nitrates 0 Safe 0 safe 0 Safe 0 Safe 2 Safe

ConclusionsConclusions

• All samples had 1 unsafe result• Tap Water – Alkalinity unsafe• Aquafina – pH unsafe• Arrowhead – Alkalinity unsafe• Kirkland – pH & Nitrites showed caution• Stater Bros. – pH shows caution

VariablesVariables

•Only tested samples one time

•Dust, dirt, oils from the classroom could have contaminated samples

•Test strips could have been faulty or contaminated