Question | Answer |
Fluids | are able to flow and change shape |
Sir Isaac Newton | stated relationship between tempetature and the viscosity of fluids |
Law of Viscosity | states that only a change in temperature affects the viscosity of a fluid |
viscosity | liquids naturally resists flow |
Newtonian fluids | keep their fluid properties no matter how much they are stirred or mixed |
ketchup, blood,yoguart gravy,mud,slime and pie fillings | examples of non-Newtonian fluids |
non-newtonian fluids | may creat a hole when stirred, they are very viscous |
plastic | a substance that can be molded into various shapes before hardening |
petroleum | a form of crude oil, black gold |
petroleum | made from plants and animals over time with heat and pressure. |
all plastics are polymers but... | not all polymers are plastics |
nonrenewable resource | it cannot be replaced once it is used up |
fractional distillation | petroleum is separated into useful parts by this process |
percent of a barrel of crude oil used as gasoline | 46.7% |
percent of a barrel of crude oil used as petrochemicals | 3.8% |
Asphalt,fuel,wax,lubricants | common products of petroleum |
asphalt | main material used for building roads |
fuel | burns easily and releases large amounts of anergy |
wax | used in funiture polish and as a coating for milk cartons |
lubricants | substances that reduce friction between moving parts of equipment |
petrochemical | a product made from petroleum |
monomer | a single link in the chain |
polymer | the entire chain |
polymerization | the process of chemically bonding monomers to form polymers |
polymers | have always existed in nature, but have recently been producted by industrial processes |
synthetic polymers | polymers made from petrochemicals |
rubber,plastic wrap and nylon | eamples of synthetic polymers |
plastics | most important synthetic polymers we use everyday |
cotton, silk,wool and natural rubber | examples of natural polymers |
protein | a natural polymer essential ingradient in living matter |
amino acides | monomers that make up protein |
starch and cellulos | carbohydrates that are polymers |
glucose | the monomer that makes up starch and cellulose |
polymers used in medicine for.. | human tissues such as bones and arteries |
graduated cylinders | used to measure liquids |
milliliters | how a graduated cylinder is marked |
menisus | graduated cylinder is measured from the bottom of this |
white glue(PVA)and sodium tetraborate(borax) | ingredients of silly putty and slime |