Page 197 - Science Class 08

v A house or a building is a safe place to pipes. During a thunderstorm you should
protect ourselves from lightning. not touch these things.

v If someone is travelling by a car or bus, he v You should use mobile or cordless phones
is safe inside the vehicle with windows and in place of landline wire phones. You
doors of the vehicle shut. should not call any one who is receiving

Do’s and Don’t During a Thunderstorm your phone through a wired phone.
Outside the House : If you are outside your v You should not take bath during thunder-
house or building you should follow the given storm to avoid contact with running water.
advices:

v If you are in an open field, near the trees or
on an elevated place, you are not safe. If 1. Name any four natural phenomena.
there is thunderstorm, you should rush to 2. When does lightning generally occur?
safer places.
3. What happens when a lightning occurs?
v Open vehicles like motor bikes, tractors 4. Why should we not stand under a tall
and open cars are also not safe. tree when there is a chance of lightning?
v You should not carry an umbrella during a
thunderstorm. Lightning Conductors

v If you are in forest, you should take shelter Lightning conductors are installed on roo ops
under shorter trees. of buildings, chimneys, factories, water tanks,
etc. to protect them from the strike of lightning.
v If you are in an open field and there is no
shelter nearby, you should stay away from Lightning conductor is a device used to protect
a tall trees, poles or other metal objects. buildings from the effect of lightning. You have
already studied about the construc on, install-
v You should not lie on the ground. Instead
a on and working of lightning conductors.
sit on the ground place your hands on your
knees with your head between the hands.
This posi on will make you the smallest
target to be struck.
v You should remember that tall things are

prove to be striker by lightning.
Inside the House

If you are inside your house or building, you
should follow the given advices to protect
yourself from lightning strike:
v You know that lightning is a discharge of EARTHQUAKES

electrical charge in a huge amount. There- Earthquakes are considered as the most
fore, lightning can strike telephone cords, devasta ng natural phenomenon. Why is
electrical wires, television cords and metal earthquake more destruc ve?

Science-8 197