Robyn's+Science+Page

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When our group was building our paper bridge, we learned that a triangle is the strongest shape to build with so we used triangles, so we  built triangles out of paper and put it on the side of our bridge. We just put paper right across the bridge about 5 times. We also put walls/gurads on the side of the bridge so the car that we put on it didn't fall off. We put a lot of layers of newspaper on the bridge so hopefully it wouldn't break.When we put the load on our bridge it kept pulling the tape off the table more and the tape ended up staying stuck on the table and instead the newspaper ripped. Maybe if we had more time we might have been able to improve our bridge by putting more newspaper on it, put some paper on the bottom to hold the bridge up more and making it harder to break and the last thing we could of done was of course,use more tape! But in the end our bridge ended up holding 7 kilograms, and we came in 3rd!

Our popsicle stick house turned out really well, i think ours is the strongest. When we tested how strong our house was we used the keyboard, mine and Kailyns waterbottles all at once and it didn't brake. When we made the walls, our whole group said it looked like a real house being built by grade 5's! Our walls were very strong and held our roof and floor very well! I also made a little wall on the inside because I was making rooms, the wall ended up being useful, it also made the house stronger. We made the house out of popsicle sticks. We built the roof by gluing to popsicle sticks together. At all four corners of the house we put the thick wood because it is strong. At the 4 corners of the house we put the thick wood aswell because it is the strongest wood we have. All the force on the house went right done in the table and onto the floor. We all thought that we should build a roof triangle and also one stick on the middle right on top of the wall that I made on the inside because then the roof would be stronger. Also the stick that we put on top of the wall would just push on the wall and then it wouldn't brake the floor. We also wanted to make a fast roof but still wanted it the be strong.We made the roof a triangle because it's the strongest shape and most roofs are triangle so the snow and rain just slides off the house and dosn't indent the roof and then the roof could crack. Maybe to make our house I might of put another layer of flooring on it or put more strips of popsicle sticks on the roof.

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Nylon was named after New York and London(NY.LON)

Nylon is very bad to make because it includes oil. Some environmental consequences are that they dig in the ground to pump out oil which pollutes the environment and could possibly kill or hurt animals.
 * Extraction **


 * Production **

When the nylon moves through the spinneret, it is exposed to the air for the first time. The air causes the strands to harden immediately and once they are hard, they can be wound onto spools. The fibers are strong and stretchey. The filaments are unwound and then rewound onto another, smaller spool. This process is called //drawing// and is used to align the molecules into a parallel structure. After the nylon has been wound onto the smaller spool, it is ready for use. Nylon products are created by [|weaving]the filaments together. The tighter the weave, the more strength the fabric will have. Nylon can also be mixed with other fibers to create combination materials. A combination of [|cotton] and nylon produces a resilient material that holds its shape but is soft to the touch. Nylon can also be woven into patterns to reinforce strength, improve appearance or meet other design requirements.


 * Distribution **

​The nylon is distributed by trains, planes but mostly cars. They pack all the nylon up in either a train, plane or a car and transport it there. The good thing about nylon is that it is very strong so it likely wont ripped or tare when it's being transported.


 * Use **

You could use nylon in clothing, accessories (made of fabric) and sometimes electronic cases (camera, lap top, etc.) Nylon usually/should last for a long time because it is very strong but if it is in clothing it might not last as long.


 * Disposal **

There is a bug called nylonase that breaks down nylon waste products into bits that are at least partially digestible. Nylon will break down but is not sustainable because it includes oil.

While making the water wheel I learned many things. We learned that to work the water wheel you use 2 types of energy, sometimes even 3. We made a water wheel which transformed gravitational energy when we poured the water into the tube. Gravitational energy is when you pour something and it makes it move. For example, you could pour sand, water, blocks etc. and it would still make the wheel move. When the water hits the water wheel it transforms into kenetic energy and that's what makes the wheel turn. After that when the water hits the bottom of the tub it transforms into sound energy.