research of the natural water finland
TRANSCRIPT
![Page 1: Research of the natural water Finland](https://reader035.vdocuments.us/reader035/viewer/2022062523/58ed4d601a28abd36a8b46e5/html5/thumbnails/1.jpg)
Researching waterTask ? in Erasmus+ - project
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In our research we compare four different kinds of
water 1. Tap water
2. Lake water from central Finland
3. River water from capital area4. Sea water from Baltic Sea
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In this research you need:
Clear plastic/glass cups
White paper and pen
Indicator paper for pH-tests
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1. SmellSmell all of your water samples
How does it smell?
How strong is the smell?
Find out what are the reasons for smell ( eutrophication, salty/no salt etc, concentration of oxygen, soil)
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2. Color
Place your water cup above the white paper.
Look at the paper through water.
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What is the color of water?
Is the color light or dark?
Find out what are the reasons for different color? (humus)
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3. The clarity
Draw a black cross (0,5cm*0,5cm) on white paper.
Place your water cup above the cross.
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Clarity of water?
What affects the clarity of water?
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4. Acid
Hold indicator paper in water.
Compare the color of your paper to colors in packet.
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What are the reasons for different pH?