1. On the next slide, try to guess what each item is based on the picture. When you press the space bar it will give you the answer.

2. TELEPHONE BUTTER CHURN CASH REGISTER PHONOGRAPH CAMERA COFFEE GRINDER PENCIL SHARPENER BOTTLE OPENER BALANCE POPCORN POPPER LEMON SQUEEZER UNIVERSAL ADDER

4. THE PULLEY THE SCREW THE LEVER THE WHEEL & AXLE THE INCLINED PLANE THE WEDGE

5. HISTORY What do you think was the first Simple Machine??? Just remember every time you use a tool to do work you are using a simple machine. It can be a repair tool, gardening tool, kitchen tool, or tools you use to play games like croquet or baseball.

6. Probably it was a large stick used to move heavy objects – like rocks. LEVER And the LEVER was born!

7. LEVERS SEESAW CROWBARS SCISSORS CLAW HAMMERS WHEELBARROW BOTTLE OPENER NUTCRACKERS BROOM SHOVEL BASEBALL BAT TONGS FISHING POLE

8. Or was it a sharp rock used to scrape animal skins???? WEDGE The WEDGE

9. WHEEL & AXLE Logs were used in early modern building to move huge rocks by rolling them along. These logs became WHEEL & AXLE around 3000 B.C., and were one of the most important inventions in history.

10. INCLINED PLANE The INCLINED PLANE and Rollers were used in building the Great Egypt Pyramids (one of the 7 Wonders of the World). 2.5 million limestone blocks (weighing 2 to 70 tons each) were moved hundreds of miles over 20 years. Ramps over one mile long were needed to place stones.

11. LEVERROLLERSPULLEYS The LEVER, ROLLERS, and PULLEYS were used to build Stonehenge, England.

12. Throughout all the early civilizations, including Lebanon, Peru, Bolivia, and Easter Island – simple machines were used to build magnificent buildings. In Lebanon, temples were built with blocks 64 feet long and 13 feet wide, weighing 1200 tons apiece. A force of 25,000 men was required to raise one stone. LEVERPULLEYSWEDGES SCREW The LEVER, PULLEYS, WEDGES, and the SCREW were all used early in history

13. Many ancient machines were in common use in Da Vinci’s time. For example, water wheels turned millstones to grind grain and Archimedes' screws lifted water from streams providing a ready supply for drinking and washing.

14. Just in case you need another look Visit The Simple Machines Glossary Page

15. Simple Machines Interactive Activity HOUSE At the site select the HOUSE to explore Simple Machines. Visit one of the 4 rooms: garage, bedroom, kitchen, or bathroom and complete the activity When you get to the site - click on the picture again to start the activity.