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Eco Jar Lab Experiment

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by

Minder Natt

on 19 June 2015

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Transcript of Eco Jar Lab Experiment

Eco Jar Lab Experiment
Individuals like us, can filter the water so that it is fresh and chemical free when used with plants. This way, the plants will strictly be consuming fresh water and not salt(chemicals). As an society and government, we can buy bottled water so that the water is 100% bacteria/chemical free. We can now water our plants and let them live healthy long lives. Us human consume 20mg of sodium per L of water. If the water is filter the amount of mg would decrease.
What our treatment and what chemicals did we use?
The Treatment we used was road salt. Road salt is normally used to deice or remove ice from roads and sidewalks. Every day we put 10 ML of the road salt and 30 ML of treated water into our jar. What is road salt comprised of? Salt is Sodium Chloride. In road salt there are many different elements and chemicals. The Chemical compounds include Calcium Chloride, Potassium Chloride, Magnesium Chloride, Sodium acetate, and calcium magnesium acetate.
What affect would the chemical have on both terrestrial and aquatic ecosystem?
Why We Got The Result That We Did
After experimenting with salt and adding salt water to our Eco jar, we noticed after a about two days of adding salt water that our plant was dead. First we thought that there was maybe some type of chemical reaction that may have happened with the salt water and the soil that we had because we knew that the soil contained some type of salt. After further researching we discovered that the reason why it died is because salt water is an alternative to regular weed killers, the organic herbicides that are created by the salt water is to strong for any type of plant causing the plant to die from dehydration. The sodium of the salt does not allow for the plant to absorb the required nutrients the plant needs to grow, with that happening there is saline in the soil taking all of the moisture out of the roots of the plants.

How can Road Salt end up in ecosystems?
Salt could end up in ecosystems in many ways. First, the water from any major water bodies contains tons of salt that goes all over the Earth. Secondly, precipitation. When it precipitates, the water carries salt from the land and sprays it over most organisms in the ecosystems. The salt comes off of the land and water carries it into rivers, which leads to oceans and seas. This cycle has continued for several thousand years but it’s been increasing at a crazy amount due to all of the artificial waste of salt that is dumped into the Oceans every day. Every day of winter in North America, mountains of road salt is dumped into the Ocean which later kills many organisms both on land and underwater.
What can individuals do?
We think that adding salt into aquatic or terrestrial life will result in dehydration of all living things from plants, to animals, to humans. I think this because salt is known to take away water and absorb it resulting in dehydration. The affect that salt will have on aquatic life is dramatically dangerous. It will dehydrate the plants and animals living underwater, making the water a poison-like substance. Salt holds water and that is why it is consumed by any organisms. But overuse of salt will result in too much water being held and dehydration naturally occurs. For terrestrial life on Earth, the result is just as bad. On land, creatures drink water to hydrate themselves whereas if the water is so concentrated with salt then instead of hydrating, the organism will dehydrate to extreme extents. If not treated properly, this usually results in death within 3 days.
On the terrestrial ecosystem, the salt drained away all of the water and dehydrated the plant over the days until it died slowly and dissolved. At first, the plant started to loose its color and become weaker. Slowly after that, it started to deform and blend into the soil. Lastly, it dissolved into the soil and disappeared. It died due to extreme dehydration. In the aquatic ecosystem, all of the organisms died and left waste which changed color and came to the surface of the water. The organisms got dehydrated and died.
A summary of the observations of both terrestrial and aquatic ecosystems.
What our group found interesting was that before we did the experiment, we knew that our plant wouldn't survive. We knew this because whenever you consume a lot of salt your tongue feels very dry and since plants are biotic, we knew that watering our plants with salt water would cause it to be dehydrated and roots would loose moisture.
What else did you find interesting?
We could have changed a little bit but not as much to our project In our minds, the road salt would end up killing the plant anyways, but we did not expect it to die as quick. Our plant looked dead very quick because the water probably wants distributed evenly among the soil. Which made one place very dry and others very damp. Finally we ended up putting more salt than needed and used over the amount we were suppose to on multiple occasions.
What improvements could you have made in your lab?
How does your Eco jar simulate to other ecosystems?
Our Eco jar simulates to other ecosystems because it is a reflection of terrestrial and aquatic life in an ecosystem. Our eco jar displays how a normal plant develops in an ecosystem. They are very similar because both have plants developing in the same way, also they both have somewhat terrestrial and an aquatic ecosystem in them.

Observation Table
June 10th
June 11th
June 12th
June 16th-18th
Quantitative observations of the terrestrial ecosystem
Average height= 3cm
Roots was rough
Qualitative observations of terrestrial ecosystem
Color: Bright green
Texture: Very strong
No odor of the plant
Very straight
Quantitative observations of the aquatic ecosystem
Ph color was green
Added 30 ml of water everyday
Qualitative observations of the Aquatic ecosystem
Color: clear
No odor in the water
There is nothing living inside the water
Average height: 3cm
Roots weren't as rough, but still very rough
Color: Bright Green
Texture: Strong
Still no odor
Still Very straight
Ph color was green but a bit darker
Added 30 ml of water
Color: Clear
No odor in the water
Still nothing living in the water
Average height: 4cm
Roots are getting softer and weaker
Color: Greenish
Brownish
Texture: Getting weaker
Plant is starting to bend
Sweet Salt type of odor
Ph color turned brownish green
Added 30 ml of water
Color: Brownish
No odor in the water
Roots beginning to develop
Average height: 4cm
Roots are becoming damp and soggy
Color: Brown
Texture: Soft and Weak
Plant is bending towards the soil, very weak
Sweet and disgusting odor
Ph color is brownish red(this is the point to where it is about to die)
Added 30 ml of water
Color Dark brown
No odor in the water
Roots are getting taller underwater
From June 16th-18th we kept on receiving the same results and noticed that our plant is dead because its Ph color was red and it was at the lowest number.
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