Kelly's+Science+Page

This is what me and my group learned and made This is our bridge.It held 11 and a half kilograms,and it's just a normal bridge made just of paper!Did you know that triangles are the strongest shape you can make your house with?We used paper and tape,lot's of tape.We had a triangular base and 2 triangular tops to hold the weight and it has to stretch 60 cm across the table.That's why you see lot's of houses with triangle roof tops. Its was really fun and our group won the contest! This is the house that we made.We had to make it so it could withstand wind and rain we are going to destroy all the houses and we are going to see who's house is the strongest! Our house is made of popsicle sticks,jinx wood and real thick popsicle stick.We made it out of two levels the bottom and the top we worked really hard on this but yet we can't wait to see it get smashed!

This is our egg protector,you won't be able to see it under all that tape,thats to proect it from the long way down fall and it ended up breaking anyways.It was made of 10 straws,5 pieces of jinx wood,some tape,well actually lots of tape,and last but not least elastic bands and it was supposed to not break when it hit the ground but guess how that turned out.It was super hard to make espically when the whole group had to agree on everything but in the end we agreed on everything and made it to turn it out like this.When it was done and it cracked we took off the tape and saw there was just a hole and you saw the yolk and the white stuff in there.

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This was another experiment our class did we investigated if this would be physical or chemical change. we had six test tubes one with vineger one with sugre one with salt and one with peroxide and one with water The salt was a chemical change. we put steel wool in with salt water and left them together for a few days when we investigated it a few days later the steel woll was still the same but the salt water had changed. the water was a rusty colour with mold on the edges of the tube were the water line sat. The vineger was a rust color and the test tube smelt very odd The peroxide was the same however the steel wool looked very clean.pl The one with salt had a kinda a sweet smell to it but the sugre water was a rusty color the water had a very bad odor even though it was just water.since water rustst steel that's what happened when it sat there.

EXTRACTION What are the natural resources in Graphite? Graphite is mainly made of plants,rocks, and other organic things are changed over time.It is a mineral.

Where is Graphite obtained? Graphite is obtained from the earth's crust,some of the places are Italy,Mexico, and Finland.

How is Graphite obtained? Miners go down into and open pit mine and drill a hole in the rock with a drill hammer. They then place an explosive into the hole and blow it up to get the chunks of graphite out of the Ore.

What are the environmental consequences of production?

In order to get our Graphite we need to clear space to dig a hole to mine it,so we wipe out the trees and it is a environmental hazard because we need the oxygen to breathe.And when we blow up the earth all the toxins of the explosive are now into our air and into the miners lungs witch could cause cancer for the miners.

PRODUCTION

Describe the changes the resource materials undergo,a physical or chemical change?

When the miners blow up the rock it is in chunks, we don't just take a huge chunk of rock and shove it into our pencils! The miners take the rock to a factory and melt the rock at 3500 K until it is a fine liquid.It is a physical change because we just took the rock melted it and used it the graphite is still there.

What waste materials are produced?
There are no waste materials produced from making it other than the factories that make it because they bellow out smoke every second.

What are the environmental consequences of production?

The smoke that bellows out of the factory every second goes into our air witch goes into our lungs and it is not good for us to breathe.Other factories that don't bellow out smoke bellow out chemicals out the back of it,so if it looks nice and pretty on the front side and no smoke doesn't come out the top of it,take a look at the other side of it,it won't look to pretty anymore.The chemicals go out of the factory into our lake and pollutes the water and can kill the fish.

DISTRIBUTION How is the product distributed? The graphite we use needs to get to us somehow, it doesn't just magically appear out of the sky it needs to get here somehow.We can ship it across the ocean, we can fly it through the sky,or we can drive it on the roads.No matter how it gets here, we don't care as long as we get it to us. What are the environmental consequences of distribution?

If we ship it the smoke coming out of the top pollutes the air.If we drive it to us there is fumes coming out of the tail pipe witch also pollutes the air and it goes into our lungs and is very bad for us.If we fly it over the plane is fuel powered witch again puts smoke into our air witch we breathe all this pollution in and it can give us cancer.

USE

How long does this product last? For me this product lasts me a month for people who write a lot maybe about a week,for people who hardly write at all about a month or two,

DISPOSAL How is this product disposed of?

We use the graphite and it gets smaller and smaller as we use it.It eventually is gone.

Does the product naturally break down? Yes the product will naturally break down because it comes from the earth and it was only a physical change so it will go back into the earth. Can your product be recycled? Yes the product can be recycled because it's biodegradable witch means it will break down back into the earth. Describe the environmental consequences of disposal There are no environmental consequences because it will break down into the earth.

No graphite is not sustainable because we keep mining it out and maybe in about 1000 years or so we may run out

media type="custom" key="21646478" width="350" height="350" Energy Transformation.

I learned alot about transforming energy in a water wheel. I learned that there are various ways energy is transformed, for example kenetic energy to kenetic energy. Learning it was easy and fun with hands on expirience.The energy actually comes from the sun because the food I eat, and it gives me energy to spin the water wheel.The energy gave off heat and sound. The water wheel showed us how it transformes energy.