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what do we do for the table of variables

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what do we do for the table of variables

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Filter 1

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How to measure turbidity        1.	Hot glue the Secchi disk to the measuring tape              2.	Lower the disk into the water until the disk isn’t visible 3.	Once you cannot see the disk, lift it out of the water and put a mark where the measuring tape stopped going in the water         

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How to measure turbidity        1.	Hot glue the Secchi disk to the measuring tape              2.	Lower the disk into the water until the disk isn’t visible 3.	Once you cannot see the disk, lift it out of the water and put a mark where the measuring tape stopped going in the water         

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sorry I had to delete the original one because the comments were filled with spam

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Method and procedure How to measure clarity                         1.	Decide a clarity scale that will be used                                2.	Put the sample of water in a clear test tube                        3.	Compare the sample to the scale and decide the level of clarity   

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Method and procedure How to measure clarity                         1.	Decide a clarity scale that will be used                                2.	Put the sample of water in a clear test tube                        3.	Compare the sample to the scale and decide the level of clarity   

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•	5 x Cotton balls
•	2 x tulle/netting
•	3 x coffee filters
•	2 cups x gravel (aquarium gravel works great)
•	2 cups x sand
•	3 x test tubes 
•	1 x test tube racks
•	1 x graduated cylinders
•	2 x litmus paper
•	1/2 cup x charcoal
•	1 x Secchi disk
•	1 x hot glue gun
•	3 x hot glue gun sticks
•	5 metres x measuring tape
•	2 x water bottles 
•	1 metre x tape

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Materials and equipment for measuring clarity: A4 peice of paper, led pencil/blue or black pen, test tubes, different color liquids                           

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Materials and equipment for measuring clarity: A4 peice of paper, led pencil/blue or black pen, test tubes, different color liquids                           

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Hey guys, hoping somebody could reply. What is your guys purposes because i'm struggling with that.

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Hey guys, hoping somebody could reply. What is your guys purposes because i'm struggling with that.

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if anybody is online can someone tell me what we put on method like how to test turbidity? or what?

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if anybody is online can someone tell me what we put on method like how to test turbidity? or what?

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Im confused about the hypothesis too

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hi guys I was wondering if any of you have a diagram

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hi guys I was wondering if any of you have a diagram

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Turbidity is measured in NTU: Nephelometric Turbidity Units. The instrument used for measuring it is called nephelometer or turbidimeter, which measures the intensity of light scattered at 90 degrees as a beam of light passes through a water sample.

The unit used in the ancient times was JTU (Jackson Turbidity Units), measured with the Jackson candle turbidimeter. This unit is no longer in standard use.

In lakes the turbidity is measured with a secchi disk (in the picture).This is a black and white disk that is dropped in the water attached to a rope.The depth that the disk reaches before it disappears from sight is recorded.This provides an estimation of the turbidity level in the lake. |

A turbidity measurement could be used to provide an estimation of the TSS (Total Suspended Solids) concentration, which is otherwise a tedious and difficult parameter to measure.

Read more: https://www.lenntech.com/turbidity.htm#How%20do%20we%20measure%20turbidity?#ixzz6YqCMMiRF

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https://en.wikipedia.org/wiki/Carbon_filtering#:~:text=When%20filtering%20water%2C%20charcoal%20carbon,salts%2C%20and%20dissolved%20inorganic%20substances.

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Firstly fill up a clean container with test water and make sure the water level is deep enough to cover the litmus paper strips. Secondly, dip one of the test strips into the container of water for a few seconds.
note: lower ph is more acidic

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https://science.lovetoknow.com/science-fair-projects/homemade-water-filter-science-project

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https://www.technology.org/2019/01/04/three-ways-to-test-ph-levels-in-water/#:~:text=Firstly%20fill%20up%20a%20clean,dipped%20in%20a%20basic%20solution.

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cotton balls

tulle/netting

coffee filters

gravel (aquarium gravel works great)

sand

3 test tubes

test tube racks

graduated cylinders

Edited: litmus paper + charcoal

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Plastic soda or juice bottleVase or tall drinking glassGravel or small stonesClean SandActivated CharcoalCotton balls, small cloth or coffee filterGardening dirtWaterScissors or knife

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Plastic soda or juice bottleVase or tall drinking glassGravel or small stonesClean SandActivated CharcoalCotton balls, small cloth or coffee filterGardening dirtWaterScissors or knife

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1. Cut off the bottom of an old plastic soda or juice bottle using scissors or a knife.

2. Place the bottle upside down into the vase or tall drinking glass.

3. Place cotton balls, cloth, or a coffee filter inside the bottle as the first layer. The first layer should be about one to two inches thick.

4. Add an inch of activated charcoal as the second layer on top of the cotton layer.

5. Over the charcoal, add about two inches of gravel or small stones as the third layer.

6. Add about three to four inches of clean sand on top of the gravel.

7. Add gravel to the bottle as the final layer. Leave about a half inch of space from the top of the upside down bottle.

8. Add dirt to a glass of water to create muddy water. Alternatively, get creative and add other things like glitter, beads, cooking oil or other materials to make dirty water.

9. Pour the glass of muddy water on top of the homemade water filter and watch the water drip clean into the glass below.