ELHI WORLD PUBLIC SCHOOL
MEDCHAL HIGHWAY
Worksheet No - 3 April 2019-20
Name: Var
Grade: V
Subject: Science
Submission:
Chapter- 3 Safety and First Aid
I. Answer the following questions:
1. When someone's clothes catch fire, we must not let him run around in panic. Why?
Because when he will on the fire will get more
2. If a person gets bitten by a snake, how will you help him/her?
3. Why should water not be thrown over burning petrol or kerosene?when someone's clothes catch fire we must not let him Run around in panic why
Answers
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Answer:
1 - Because when he will run the fire will get more supply of oxygen and it will react . So to cut the supply of oxygen he is recommended to roll or ground or should be covered by a blanket.
2 - If someone gets a snake bite, they should take the following steps while awaiting medical attention: remain calm. call 911 immediately. gently wash the area with soap and water if possible.
3 - Water should not be thrown on fire caused by oil/petrol/gasoline etc because they are lighter than water so they continues to float over water hence continues to burn. So rather than controlling the fire it will spread the fire.
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