Kaylee's+Science+Page

This is my Science Page.

Here is what I learned during our study of Structures and Mechanisms.

This is our winning bridge that was wieghted at 11 kg. I thought we whould of got in 2nd or 3rd place, But we got in 1st place. It was so fun with my group.I thought our bridge whould of broke, but it did not brake.

This is our house.It looks good but our roof is not that good but the rest of our house is good.The floor is not that stable but it might work.What I helped my group with was glue some suff together, build the house and this is what our house looks like.

This is our egg portetor. We thought it was in 3rd but we got 2nd and we were happy with our egg portetor.



__** Crayons **__ Crayons are made of wax and paraffin wax too.Crayons are uesd for coloring a picture.Standard crayons are 3.5 inches in length and mosttly made of pettroleum paraffin wax.Paraffin wax is heated and cloured to made a red, green,blue,pink,yellow,orange crayons. = EXTRACTION = The natural resources would include paraffin and pigments derived from mineral sources. A crayon is made from wax, chorcoal, chalk. Crayons are made with paraffin wax, which is a by petroleum and can be toxic. =PRODUCTION= Crayons are a physical change because it changes it shape but it dose not the chemical composition.A chemical change is when you bake a cake because once you have added the ingredients you can't remove them and it becomes a new substance. The suff you wast is the paper off the crayon.Crayons are enviromentally friendly. =DISTRIBUTION= Crayons are shiped and packed in boxes to the store. =USE= Crayons are used for coloring a picture and drawing. =DISPOSAL= They melt it and reuse it.Yes because it's a natural substance and it's just wax.Yes because they melt it and reuse it.

The Roll Back = Making the roll back was so fun. In the expriments I leared how energy worked. For example the roll back kinectic to elastec energy. Also it was really cool how I pushed it and it came back to me. Finally it was easy and fun to make. =