Cause and effect is when an event happens, there is a cause or reason why it happened. There is a relationship between a cause and effect. The effect is what happened as a result of the cause. Learning cause and effect helps students understand story and situation structure. Our cause and effect worksheets may be used for a variety of grade levels.
Polymers are substances whose molecules have high molar masses and are composed of a large number of repeating units. There are both naturally occurring and synthetic polymers. Among naturally occurring polymers are proteins, starches, cellulose, and latex.
Kevlar is a synthetic (person-made) material known as a polymer. Some other common synthetic polymers include Nylon, Teflon, Lycra, and polyester. A polymer is a chain made of many similar molecular groups, known as monomers, that are bonded together. To get a better picture of this, imagine that you are looking at a long locomotive train. Each identical boxcar could represent a monomer and the whole train would represent the polymer chain.