On which type of simple machine would you found a fulcrum? explain what a fulcrum is.

A lever is a long bar that can turn around a point, which is called a fulcrum. When the fulcrum is in the middle, you can put a heavy object on one end and push down on the other end to lift it. The closer the fulcrum is to the object that you are lifting, the easier it is to lift. If you've ever played on a seesaw (or teeter totter), then you've used a lever.

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

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