Evan's Watershed Blog Page

Procedure for Phosphorus

I predict that the phosphorus will slow the growth of the duckweed down because the fertilizer will pollute the water that the duckweed grows in and change the water quality to affect the duckweeds growth.

These are the steps that we used for our phosphorus investigation

STEP 1: Add 20 ml of distilled water into each 28 ml test tube.

STEP 2: Add 4 duckweed plants into the 28 ml test tube

STEP 3: Add .28 ml of liquid fertilizer into each 28 ml test tube
Phosphorus and Duckweed investigation

About 16% of phosphorus comes from forest land. In Otter creek the watershed covers about 17.1%. Statewide estimated phosphorus contributions from forest land can run as high as 35% for the Missisquoi bay lake segment and as low as 0% for the Cumberland bay lake segment. Forest lands are the second largest contributor of phosphorus within the Otter creek watershed next to agriculture which is about 49%. About 16.4% comes from stream erosion. About 14.4% comes from developed lands (parking lots, unpaved and paved roads, roofs and large athletic fields). Wastewater treatment Facilities, 3.2%. Implementation plan requires a 5% reduction in phosphorus from forest land. In the Missisquoi bay and in the lake segment known as south lake B 50% and 40% reductions, respectively, given the water quality concerns in those watersheds.

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Gaen Murphree

Science blog
On 11/17/16 are class and another class did a science experiment to test the water quality of a fish tank and monkton pond.We put chemicals in the water of monkton pond and the fish tank this is what happened to the water when we put chemicals in the monkton pond water:The water started bubbling up when we first put the chemicals in it, After the water stopped bubbling up it was mostly clear but a tiny bit cloudy, When we put a different kind of chemical in the water it turned a mango color,after the color went down we noticed that the water got chunkier,Then when we tested the water in the tank the pond water was darker then the fish tank water,Then when we added another kind of chemical and it took 14 drops for it to be clear again.This is what happen when we put chemicals in the fish tank:When we put the chemicals in the fish tank water it was a lighter mango then monkton pond water was when we put the chemicals in monkton pond it was a darker mango,When we put another chemical in the water it took 10 drops until the water was clear again, After the color was down there was a coat of chunky stuff on the bottom of the jar that has the water in it,The fish tank water wasn’t as chunky as the monkton pond water was.

Science Blog
Over the weekend we had to find point and nonpoint sources. This is what I saw for nonpoint: At the soccer field there was a piece of trash rolling around this is nonpoint because nobody saw them do it.Another nonpoint I saw was smoke coming out of houses from there woodstoves this is nonpoint because a machine is polluting the earth not a human.It rained alot so the mud/human waste/animal waste got washed up into lakes rivers ponds oceans this is a nonpoit because nature was doing it not a human.The last nonpoint I saw was smoking exhausts it is a nonpoint because a machine was doing it.The point sources I saw where:I saw someone throw gum on the ground which runoff could wash the gum up and take it to the water and upset the water cycle this is a point source because a human did it.The next point source I saw was people who put gas in there car can make the gas leak when they take the gas pump out of the car or the gas overflows this is a point source because someone made the gas leak. Another point I saw was someone had a fire which could spread the ashes around then they could get washed up by runoff or when the fire goes out chloe could be left out and then the runoff could take it this could be nonpoint or point because someone made the fire but the fire went on it’s own.The last point source I saw was people left little chunks of cut would outside which runoff could wash it up and bring it to the water and upset the water cycle.

Science blog #1

This week in science we learned the meaning of point and nonpoint. Point means someone threw trash or something on the ground to pollute the earth and someone saw them do it, nonpoint means a machine is polluting the earth or someone threw a piece of trash or something on the ground but nobody saw them do it. The big thing that we have studyed this week is pollution and how it affects the earth.In our reflection peice we wrote down some things that pollute the earth like leaking pipes,

barrels leaking,chemicals,smokestacks,sewage discharge,fertilizer,urban runoff,litter and salt and sand.The big question is how does water quality affect the ecology of a community.

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