THE PURPLE SPARKLY LLAMAS

STUDY SITE AND METHODS

• The Tualatin Wildlife Refuge
• We looked at pond water and stream water
• We tested the dissolved oxygen, temperature and turbidity
• We used different samples of water and tested each variable
• To test the quality of the water sources we used prepared chemical tablets

HYPOTHESIS

• The stream water would have higher dissolved oxygen than the pond.
• Our reason is the stream is running water

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TEMPERATURE

• The higher the temperature the less dissolved oxygen there is
• In our results we saw that the pond has higher temperature
• This supports our findings that the pond has lower dissolved oxygen

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TURBIDITY

• High levels of turbidity negatively affect dissolved oxygen
• This is due to decreased clarity of water increasing the temperature
• Average for pond: 0.2 JTU
• Average for stream:0

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IN CONCLUSION..

CONCLUSION PT.2

• All three factors are important to water quality.
• Based on our results, we concluded that the stream appears to have higher water quality
• This could be due to the fact that the stream is running water and the pond is still water.