Simple Machines by Mrs. B.'s Class

      Simple machines make work faster and easier. There are many types of simple.  We are learning about simple machines in order to be great scientists.  We are learning about simple machines so that we can be great engineers.  Some examples of simple machines are: pulleys, gears, levers, wheel and axle, wedges, inclined planes, screws, to name a few. 
       When learning about simple machines, it's important to know how to figure ratios and to know our fractions.   When you have 2 pulleys, it takes half of the force needed off.  But remember, you don't have as much weight to pull, but you have to pull the rope of the pulley twice as far.
        When we pulled on a pulley with 6 pulleys on it, it took only 1/6 of the weight, but we have to pull it "6" times as far.