Week+13+--+(May+9-13)

__**Week 13**__ -- (May 9-13) -- The students will study the operation and construction of Leonardo DaVinci's catapult. They will design, create and test there own catapult. The students will study simple and compound machines. Using scientific formulas the students will calculate mechanical advantage and efficiency of machines. There will be a weekly quiz on this at the end of the week.