Презентація "Lightning"

Lightning

Lightning is beautiful and exciting, but it kills a thousand people in the world every year. Lightning is electricity. The electricity in lightning is very strong. In 1998, one flash of lightning killed eleven players at a football match.  When you see lightning, start counting the seconds: one... two... three. Stop counting when you hear the thunder. Every three seconds is one kilometre. So if you count six seconds, the lightning was two kilometres away. That doesn't mean it is safe. Lightning can move very fast. 

How to be safe in a storm: 1) Stay inside if you can. You will be safe if you do not use the telephone, electrical equipment or water. Do not stand too close to windows or doors. 2) Lightning often hits metal things; so do not touch metal things outside. But you are safe in a car if the windows are closed. The electricity goes down through the car's metal and not through the people! 

3) Lightning often hits the tallest thing. Ask yourself "What is the tallest thing here?" If the answer is "A tree", do not stand under that tree. If the answer is "Me", move quickly! 

Thunderstorm Safely rules. Write down and translate. If you are outside: Do not stand under a tall tree standing by itself. Do not run and do not stand beside metal objects or on raised ground. Do not bathe during a thunderstorm. Do not stay in or near water. Stop your car if you happen to be driving during a thunderstorm and wait till lightning and thunder have stopped. In a building: Stay inside a building or a car. Switch off all the electrical appliances. Remove the aerial from your TV set and radio out. Don't touch metal objects. Do not use a telephone. Do not stay by open windows or doors.