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It’s Shocking!

It’s Shocking!. Chapter 8 Topic 1. Vocabulary. Static Electricity-a buildup of electrical charge. Discharge-when a buildup of electrical charge empties into something. Conductor-a material through which electricity flows easily. Insulator-a material through which electricity does not flow.

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It’s Shocking!

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  1. It’s Shocking! Chapter 8 Topic 1

  2. Vocabulary • Static Electricity-a buildup of electrical charge. • Discharge-when a buildup of electrical charge empties into something. • Conductor-a material through which electricity flows easily. • Insulator-a material through which electricity does not flow.

  3. What is electricity? • It comes from tiny particles. • The particles become charged. • Different charges attract. • Similar charges repel, or push each other away. • Electricity is the energy caused be the flow of particles with negative electrical charge.

  4. What Happens to Charges? • Electricity can flow easily through materials known as a conductor. • Metal is a great conductor. Think about touching a metal door knob, when you have a build up of static electricity. • It can not flow though an insulator. • Wood, Air, and Rubber are great insulators!

  5. How Does Lightning Form? • Water and ice particles rub together inside a thundercloud. This separates the positive and negative charges. • Light, positive ice particles gather at the top of the cloud. • Heavy, negative water particles settle at the bottom of the cloud.

  6. How Does Lightning Form? Cont. • Compared to the cloud bottom, the ground below is positively charged. • Soon the build up is too great. Charges jump the gap between the cloud and the ground as a discharge. Zap! Lightning strikes!

  7. How Does Lightning Form?

  8. Interesting Facts • A discharge of static electricity from a cloud is called lightning. • Lightning occurs when charges jump the gap between the negative cloud and the positive ground.

  9. Where Does Lightning Go? Lightning can go to one of three places: • Stay inside the cloud. • Travel between the two clouds. • Strike the ground or objects on the ground.

  10. Energy Lightning gives off the following forms of energy: • Light Energy • Sound Energy • Heat Energy

  11. Safety Tips • Stay away from trees and other tall objects. • Stay away from high places. • Get out of the water. • Don’t use the telephone. • In you are in a car, stay inside. Close the windows and doors. • Don’t touch electrical devices or anything made of metal.

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