1. Hi--I am Art Krakowsky I am an Electronics Engineer I volunteer at Jackson Ave School Grades 4 and 5 The students call me Doctor K

2. TWO kinds of electric energy Static Electricity Current Electricity

3. A few thousand volts

4. Van de Graaff Born 1901 Invented static electricity generator in 1929 This is the generator we will use today

5. Here is a bigger Van de Graaff generator

6. An even bigger one!

7. A giant Van de Graaff generator

8. The biggest--25 Million Volts Oak Ridge National Lab in Tennessee

10. Electrons jump onto the belt at the bottom Electrons jump off the belt at the top

11. One of the properties of matter Where the electrons go when two things are rubbed together

12. Static Electricity

14. Everyone stays seated and pretty quiet so the volunteer can hear Volunteer keeps hand still and on the globe

15. Why does your hair do this??

16. Because all the - charges (electrons) repel

17. triboelectric series + Rabbit's Fur Glass Human Hair Nylon Wool Cat's Fur Silk Aluminum Paper Cotton Polystyrene Polyethylene Rubber balloon Hard rubber Polyester Polyurethane Polyethylene Polypropylene Vinyl Teflon Saran Wrap PVC