Rylan's+Science+Page

this is my Science Page.

Here is what I learned during our study of Structures and Mechanisms .This is me and my group with my bridge it was pretty hard but we got the hang of it when we got it to stand up and use a hole wack of tape.I learned if u want a paper bridge to stand up the you are going to have to have alot of team work and a plan and always follow the plan. My group was going to do a trust bridge but since we didn't have enough time we ended up with this and i liked it and held quite a bit of wieght. So i think we turned out pretty good.This is me and my group with our house it acctully turned out pretty good. But we had a bit of arguments with our house. but when we put pressure on it it acctully held and it was acctully pushing the force from our hand down right to the bottem of the house and we also ran out of jinks wood. This me and my group with our egg progect and i just have to say this was the best progect i have ever done. It was fun because we acctully had a plan we figured out what we wanted it to look like and we disscused it and the next day we ended up as not doing what we wanted to so it turned out pretty good. And i also like the part when all the yolks came out and it was just awesome to see that in school to! best science class this is our classes experiment we used cornstarch,bakingsoda,sugar, and salt. we mixed them all with iodine and as you can see the corn starch turned black and just back to powder but the colour changed so it was a chemical change because if it was a phisycal change then we would not beable to turn it back to powder and put it back to white.and right beside the corn starch is the sugar.media type="custom" key="21528994"The natural resourses in a marker. plastic resir-polyester-writing tip-powder and water-pigment-synthetic-cyclic alkylene.

media type="custom" key="21606026" How the marker is made. They have to get all the materials first. first they have to get pigment from the ground. Then they have to get the ink from plants, seeds and chemicals. And natural made plastic are made from animal horns, animal milk, insects,trees and plants.but now a days we make man made plastics. media type="custom" key="21606000"How the resourses obtained. first they have to make the vetable ink witch vetable ink comes from shell fish blood, tannin from galls,nuts or bark from trees. And then they get the soy oil from soy and people acctully use it for cooking and it is the most edible oil they envented. And it has in it 65% of soy, 12% of canola,8% of palm,7% of corn,2% cottenseed,2% sunflower, 2% olive. The toxic solvents that are in the marker are from factorys and that is an enviromentel problem. The ink in the marker is a chemical change becuase because it is from the ground and you can't put it back. The plastic of the marker that keeps the ink inside and all the other chemicls is a chemical change for the plastic. The waste materials that are in the marker are the marker coating witch is recycled plastic and the ink has in it ozone, volatile organic compounds.And in a marker the environmental consequences are the inks that contain heavy metal with it and that polutes our air and the chemical in it hurts our environment.

media type="custom" key="21605976" The markers are distributed to stores in card board packs. they go to craft stores like dollarama, staples and a hole lot of other stores. And people buy them and then they go to your home and you really just throw them out. And the environmental consequences of distribution are if any of the markers with the ink in them open then the ink spills out of the truck then the ink will get out of the environment then it will kill plants and pollute the air with the heavy metal that is inside. media type="custom" key="21606244" the product last for about 1 or 2 months or maybe even a year. When you buy a new marker from the store you keep it the you put them in a fun tub with all the other markers and i bet you that half of your markers either don't have lids or have run out of ink. And then you buy new markers and you are really just wasteing your money but half of those markers still do work.But every body will say "oh i don't have the time to do that" so nobody does it and you still toss out the ones that really work so you are really just wasteing your money on markers.media type="custom" key="21606378" The marker is disposed in the way of.......a mom finds some broken or out of ink markers she trows them in the trash and the garbage truck picks up the bag of garbage and with the markers in the bag and they take it to the dump and the dump barries it under the gound so it magicaly disappears .But really the markers stay there __ FOREVER __. Seriously if you put a marker under ground for 10 years it would still be there because of the plastic it won't compose. The product of the marker will most likely break down after 2 or 1 years but it won't naturally break down it will break down because he/she is either pushing on the marker to hard and then the marker is trash.The ink and the stuff inside the marker can be recycled but that plastic just isn't recyclable.So i would say that markers can't be recycled. The environmental consequences of a disposal in a marker are when then marker goes to the dump they smush it down and the ink comes down and the heavy metal that is in the ink is poluting our air and hurting the enviroment.And yes a marker is sastainable because heavy metal in the ink hurts the enviroment.

== I learned many things about types of energy with the water wheel. I figured out that when the water wheel moves there are three types of enery. First there is gravitational energy in the falling water. The gravitational energy comes from the water we poured wich turns the wheel. This causes kenetic energy in the turning wheel. As the wheel turns energy is transformed. From kenetic to sound energy when it hits the wheel.==