1. Simple and Complex Machines Simple Machines- the ability to do work Complex Machines- two or more simple machines that work together to do work

2. There are 6 simple machines: Inclined Plane- ramp or slanting surface that connects a lower level to a higher level Lever- stiff bar that rest on a support called a fulcrum Pulley - grooved wheel with a rope or cable around it Screw- an inclined plane wrapped around a pole Wedge- slanting side ending in a sharp point used to split, lift, or hold Wheel and Axle- circular device with a rod, called an axle, through its center

3. Inclined Plane- allows things to move up or down it

4. Lever- lifts or moves loads

5. Pulley- moves things up, down, or across

6. Screw- holds or lifts things together

7. Wedge- lifts, splits, and holds

8. Wheel & Axle- lifts or moves loads

9. Complex Machines- Find the Simple Machines Within

10. Free Activity Resources http://www.superteacherworksheets.com/simple- machines/simple-machines-pictures_WMTNM.pdf http://www.superteacherworksheets.com/simple- machines/simple-machines-examples_WMTRB.pdf http://www.superteacherworksheets.com/simple- machines/simple-machines-mini-book_WMTNF.pdf