science form 2

12
Diesel .. crude oil .. use oil .. Oil spi lls

description

it's about oil spill, prepared by Amira Farzana from SMK MK. we use it during presentation at the school.

Transcript of science form 2

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Diesel ..crude oil ..use oil ..

Oil spills

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Imagine yourself as a killer whale. You are swimming around when you decide to stick your head out of the water to take a breath. As you are taking a breath, you see a large stream of thick black oil heading your way. You go back under water only to find other animals dying one by one because the oil is damaging their bodies.

This is the way some animals must die in the ocean. They die because of an oil spill occurring in their habitat

OPEN YOU EYES!!

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OIL SPILL RELIEF AND HOW YOU CAN HELP!!!

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Oil spills happen when people make mistakes or are careless and cause an oil tanker to leak oil into the ocean. There are a few more ways an oil spill can occur. |>Equipment breaking down may cause an oil spill. If the equipment breaks down, the tanker may get stuck on shallow land. When they start to drive the tanker again, they can put a hole in the tanker causing it to leak oil.

WHAT’S AN OIL SPILL ??

|> When countries are at war, one country may decide to dump gallons of oil into the other country’s oceans.

|> Terrorists may cause an oil spill because they will dump oil into a country’s ocean. Many terrorists will do this because they are trying to get the country’s attention, or they are trying to make a point to a country.

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|> illegal dumpers are people that will dump crude oil into the oceans because they do not want to spend money on decomposing their waste oil. Because they won’t spend money on breaking up the oil (decomposing it) they will dump oil into the oceans, which is illegal.

|> Natural disasters (like hurricanes) may cause an oil spill, too. If a hurricane was a couple of miles away, the winds from the hurricane could cause the oil tanker to flip over, pouring oil out.

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SEE WHAT WE HAVE DID !!

Death of sea animals and sea birds (SHALLOW HARMFUL SPILLS, BODIES COVERED WITH OIL)damage the habitat along the coast.

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Effects on animals..

Birds die from oil spills if their feathers are covered in oil. The bird will then be poisoned because it will try to clean itself. Animals may die because they get hypothermia, causing their body temperature to be really low. They may die from really low body temperature. Oil may also cause the death of an animal by entering the animal’s lungs or liver. The animal will then be poisoned by the oil. Oil also can kill an animal by blinding it. The animal will not be able to see and be aware of their predators. If they are not aware of other animals, they may be eaten.

Oil spills sometimes are the reason for animals becoming endangered. This means that a certain type of animal is getting so small that it is in danger of becoming extinct.

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Direct exposure to oil spill – a variety of health effects may develop

when the oil spill occurs close to where people live or work and may

come in contact with humans through breathing gaseous oil

compounds and/or oil compounds adsorbed on particulate matter.

(dispersed through air)

Indirect exposure -through consumption of contaminated food or

water – especially relevant in the case of consumption of fish that was

in contact or in an oil spill polluted environment. This is because some oil components have ability to “bioaccumulate” in living

organisms.

effects on humans !!

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There are many ways to stop the spread of oil in the ocean. Workers can place a boom around the tanker that is spilling oil. Booms collect the oil off the water. A boom may be placed somewhere before an oil spill. They can be placed around an entrance to the ocean, like a stream. They also can be placed around a habitat with many animals living there. These booms will absorb any oil that flows around it.

The workers can also use skimmers. Skimmers are boats that can remove the oil off the water. Sorbents are sponges that can collect the oil. An airplane can fly over the water dropping chemicals into the ocean. The chemicals can break down the oil into the ocean.

CONTINUE

How do they clean up the oil on the beaches or the water after a spill?

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They also can burn freshly spilled oil with fireproof booms to contain the oil. They might not decide to burn the oil because this method causes air pollution.

There are just a few ways to clean the oil off the beaches. Workers can use high or low pressure hoses to spray the oil that is on the beaches. Vacuum trucks may be driven on the beaches to vacuum up the oil. They can also simply use shovels or road equipment to collect all the oil off the beaches.

The method they use to clean the beaches or oceans depends on many things. They have to look at the weather, the type and amount of oil spilled, if people live in that area, what types of animals live in that area, and many more things. In some situations, they may not react to a spill. It may not be helpful or it would just cause even more damage to that habitat.

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THANK YOU!!

Amir edwin Shakir

Khalifah Amira