ipl-logo

Motor Oil Lab Hypothesis

1066 Words5 Pages

Objective:
How will adding motor oil to the LJOC affect the organisms living in the jar?

Hypothesis:
I think that the motor oil will kill a lot of the organisms in the LJOC, but I also think that the organisms that don’t get killed will be able to live in it and eventually become used to it. I think this because oil spills can contaminate water supplies, and the organisms that we will be observing are in the water. I am not sure if the organisms will be affected in the same way humans are affected. Background Information:
Before the class started making this LJOC, we all made a first LJOC which only had dechlorinated water and grass in it. My partner and I added the dechlorinated every time we thought that the LJOC looked dry, but none of the groups added more grass as time passed. The first day that we setup the LJOCs they smelled like grass and dirt, but a …show more content…

Unlike my partners and my variable jar, the control jar looked a lot like the first LJOC that I did, a lot of the water had evaporated and most of the grass was dead. The next time my partner and I did an eyeball observation was on 11/30/2017. The variable jar had yellow and black water, as well as grass coated in motor oil. Unlike the variable jar, the constant jar was overall becoming lighter. The water was a light yellowish-green, and the grass was mostly light green, but a few strands were dark green. The third eyeball observation that my partner and I did was on 12/14/2017. The variable jar was almost completely black and dark green, with a few light color strands of grass. The control jar’s only difference that I could detemen through an eyeball observation, was the amount of water, which had decreased and the smell had started to become more

Show More
Related
1931 Words | 8 Pages

After another two minutes there were many black specks and the liquid was very dark gray. After another two minutes the gray was a little darker and the blue appearance of the liquid was almost completely gone. After another two minutes the mixtures liquid was completely black with little specks of blue still left as the solid. After another two minutes there was little blue left and the specks were almost all completely black. After the last two minutes

Read More
104 Words | 1 Pages

Based on the obtained results from the experiment, the unknown liquid was determined to be methanol. The results were very close to the theoretical values, all within 15.92 % error. In this experiment it showed that the methanol have different intermolecular forces at work and at different vapor pressures implying that the amount of intermolecular forces they exhibit affects the vapor pressure. Possible source of error that occurred throughout the experiment was that the temperature was hard to control leading to the variances between the temperature of the reading in the water bath and the actual temperature causing slight changes in the vapor

Read More
562 Words | 3 Pages

Mixing another way could have prevented this

Read More
2025 Words | 9 Pages

Once the solution was cooled, 15 mL of diethyl ether was added and the new supernatant liquid was then filtered through a pad of celite in the buchner funnel. Final liquid product is concentrated in vacuo to produce a thick, black liquid. Further purification of the black liquid was done via flash chromatography in a 95% petroleum ether/5% diethyl ether solvent system (Rf value of 0.26) to produce the final product (3a). The product was concentrated in vacuo, containing 0.3 g of ethyl cinnamate (62.5% yield) in a clear, odorless liquid (3a). Results and Discussion:

Read More
456 Words | 2 Pages

The iodine molecules diffused with the cornstarch. The colors have changed/decreased. The molecules went from the iodine, through the plastic bag, to the cornstarch. The light lavender is cloudy and the dark lavender is very thick.

Read More
623 Words | 3 Pages

The next experiment involved Substance B. Substance B was soluble in water and had no reaction to phenolphthalein. The unknown substance also didn’t have a reaction with sodium hydroxide. Substance B was then tested with Benedict’s solution/heat and turned to a blue color; vinegar was then poured into the substance and had no reaction. Alcohol was then added to the substance and substance B was found to be insoluble. Heat was then added

Read More
1828 Words | 8 Pages

All three fish are dead. The Water is murky and is giving off a sulfur-like smell. A film has formed in the water surrounding the duckweed.

Read More
1028 Words | 5 Pages

Identify the problem: In a vast array of Michigan lakes, a crusty brown algae is spoiling the waters it comes into contact with. (Some lakes include Torch Lake, Elk Lake, and Lake Charlevoix). Pinpoint Causes of the Problem: From an undetermined source, groundwater nutrients nutrients like nitrogen and phosphorus are penetrating the lake at abnormal levels. However, a few leads have been suspected. These culprits include invasive mussels, heavy ice cover the last two years, residential and agricultural runoff, and outdated septic systems.

Read More
853 Words | 4 Pages

Fishes don’t swim in oil What happens when you force a fish in oil? it dies. Fishes live in water, not in oil. So as the Lubicon Cree.

Read More
541 Words | 3 Pages

Introduction Forensic chemists test the physical and chemical properties of materials found at a crime scene. They also do similar tests on the materials found on a suspect’s skin or clothing. In this lab, the properties of three known materials will be compared with two samples of “evidence.” The materials and equipment used are less complex than those used by forensic chemists, but the overall method will be similar to the methods they use. The question this experiment attempts to answer is whether the properties of similar-looking materials can be used to tell them apart.

Read More
615 Words | 3 Pages

The objective of the sludge lab was to determine how many different pure substances were in the sludge by using the methods and techniques we have learned throughout the year. We had to pick separation methods so we could separate our sludge and then test characteristic properties on our separated liquids and solids. This experiment made us use our knowledge on characteristic properties to pick the ones we should test to help us identify our pure substances. Characteristic properties are properties that help identify a solid or liquid. Each solid or liquid has a certain density, boiling point, solubility, flammability, so if you know what each one is then you can use that information to help you identify your solid or liquid.

Read More
1117 Words | 5 Pages

Even though an oil spill is a terrible thing, it does open opportu-nities such as more jobs. For example, if there were to be an oil spill, it gives scientists a chance to use their remedies to clean it up, it gives people a job to clean up the oil, and jobs to clean up and care for injured animals during the process. Therefore, as long as oil is being spilled, it gives

Read More
818 Words | 4 Pages

Oil can do some things that people would have not normally thought of. It can build cities and and raise the pay, but it can also open up opportunities for some. When Texas discovered oil within a few years there was towns that popped up one year with thousands of people, people left to work in the oil fields and their old jobs were available and were well paying, and when people have open plots of land they sometimes drilled for oil and made a lot of money for various uses. In the year of 1925 Wink Texas was not even on the map much less a city.

Read More
1384 Words | 6 Pages

Studies examining the effect of oil exposure on polar bears indicate that upon petroleum or fuel exposure, polar bears absorb bulk of oil in their hairy coat. After the physical contact, polar bears can metabolize sufficient quantity of oil, causing kidney malfunction, digestive system imbalance, and brain diseases that lead to death. Removal of thick blanket of hair, and skin and eye irritations are few of the other harmful effects (“Polar bears and oil developments”). Species like polar bears and seals are able to absorb oil across their skin, via gastrointestinal tract, or by inhalation. Once absorbed, it spreads to all tissues in varying quantities.

Read More
495 Words | 2 Pages

I found this video extremely entertaining because this film showed how man transformed based on the new knowledge that we had acquired. At the start of the video, we see a man first discovering the skull and soon developing a sketch of what he thinks man looked like based on this finding. Eventually, he finds a leg bone and with this, determine that the shape of this bone meant that man walked upright. This was surprising to me because based on the time frame of these findings, evolution had taken place much earlier than I had thought.

Read More

More about Motor Oil Lab Hypothesis

Related Topics

Open Document