J Glossa

• Splint

• Ice pack

• Toxic

• Tetanus

• Extinguish

• Sterilize

• Antiseptic

• Inflammation

F:actice Time

A support used to keep the fractured bone in place.

Ice in a piece of cloth.

Poisonous substances, harmful to the body.

A disease which is caused by germs.

To put off fire.

To make something free from germs.

Chemical applied to wounds to kill the germs.

Swelling of the affected part.

A. Tick the correct option. 1. Cold drinks and juicy fruits should be given in case of _____ _

a. insect bite

c. burns 0 0

b. sprain

d. nose bleeding 0 0

2. A ______ is used to keep the fractured bone in place.

a. stone

C. splint 0 0

b. cotton

d. cream

3. What should be avoided in case of sprain?

0 0

a. Ice packs O b. Rest 0 c. Movement O d. Drinking milk 0

4. Which among the following is not safe?

a. Using a safety belt while travelling in a car. b. Turning off the gas regulator when there is a gas leakage in the house.

c. Throwing burning match sticks on the floor.

d. Washing hands before eating. 5. Which of the following is used to stop the flow of blood?

a. Ice pack (l b. Sling 0 c. Gauze padding CJ d. Splint 0

0

7 L.)

C

B. Fill in the blanks. 1. Avoid wearing ______ clothes while working in the kitchen or while bursting

crackers. 2. If there is a gas leak, turn ______ the gas regulator.

3. Fire caused by petrol should be put out by throwing _____ _

Active Science-5

4. In case of cut, wash the wound with ______ cool water.

5. Fractures are caused when a ______ breaks.

6. Before plugging in appliances into sockets, keep the switch in ______ position.

7. In case of snake bite, if the victim feels drowsy, ______ him to sleep.

C. Match the following.

1. Accidents are an external action

caused due to

2. Do not light a matchstick near a

3. To avoid accidents and to keep

ourselves safe, we need to follow

4. Do not apply any ointment or cream

on the

a. safety rules

b. burnt area

c. gas cylinder

d. carelessness

. Net Work

• For making a first aid

kit, log on to

http://www.mlive.com/

healthy-muskegon/index.

ssf1/2012/04/make _a_first_

aid_kit_ with_your.html

D. State whether the following statements are true or false.

1. Cotton clothes catch fire easily.

2. Careful people are able to avoid accidents.

3. Medicines should be accessible to all family members.

4. Blisters on burns should be pricked.

5. In case of a cut, keep the wound at a level higher than the rest of the body.

6. In case of nose bleeding, tighten the clothing around the person's neck.

7. Lemon juice or vinegar can be applied in case of a wasp sting.

E. Give one word for each.

1. Support used to prevent movement of a fractured bone.

2. Watery eruptions on the skin formed as a result of burns.

3. Condition when the tissue around a joint gets torn

and there is swelling.

4. Toxic substances harmful to the body.

5. First help given to the victim before the doctor arrives.

F. Short Answer Questions.

1. What would you do if someone falls and fractures his/her leg?

2. What would you do if your hand gets burnt?

3. Your brother suddenly cuts his hand while cutting a fruit. How would you help him?

4. What first aid should be given in the case of an insect bite?

G. Long Answer Questions.

1. Why does a fractured bone need proper support?

2. How should you behave in case you see an accident?

Let's Pronounce Together

en,ironment

as thma

sewage

survival disposal

hypertension

typhoid

spoilage deforestation

pesticides

diarrhoea

polythene

firecrackers cholera

• All the things surrounding us make our environment. • Air pollution is caused by smoke coming out from vehicles, industries and bursting

firecrackers, and burning coal and firewood.

• Air pollution is harmful for our environment and health. • Disposal of waste from factories and sewage pipelines causes water pollution.

• Polluted water causes diseases like diarrhoea, cholera, typhoid.

• Honking vehicles, loud speakers and machines cause noise pollution.

• Dumping wastes from factories, overuse of chemicals and deforestation are major causes of land pollution.

• Deforestation causes soil erosion.

• Plant more trees to reduce air and land pollution.

• Proper treatment of waste from industries can reduce water and land pollution.

• We should use cloth bags and paper bags instead of polythene bag .

.J Glossary

• Environment • Pollution • Pollutants

• Greenhouse effect:

• Global warming

• Water pollution

• Noise pollution

• Land pollution • Soil erosion

Things that surround us. The presence of harmful substances in our environment. The harmful substances that make our environment dirty and cause pollution. When harmful gases like carbon dioxide, chlorofluorocarbons and methane trap solar energy and do not allow it to escape from the atmosphere.

The addition of carbon dioxide gas in air because of air pollution, has increased the temperature of the earth. The addition of harmful substances in water which makes water unfit for drinking.

The unpleasant and loud sounds which cause irritation and

discomfort to our ears.

The destruction of land due to its misuse. . d By cutting down trees, soil becomes loose and can be easily carrie away by the blowing wind and rainwater.

uce Time---------------------~rac . fick the correct option. ~- . . Environment 1s very important for the survival of

1. lJ -----a. plants b. animals c. human beings O d. all the above

z. Which disease is caused by air pollution?

8. Lung cancer O b. Diarrhoea c. Hypertension O d. Typhoid

3_ Diseases like diarrhea, cholera, typhoid are caused by _ ___ pollution.

a. land O b. air c. water O d. noise

4. Which activity causes soil erosion?

a. Spread of harmful gases O b. Excessive use of chemicals c. Deforestation O d. Sound from machines

5. Which pollution causes heart diseases?

a. Air pollution 0 b. Water pollution c. Land pollution 0 d. Noise pollution

6. Which pollution can be reduced by disposal and management of waste? a. Air pollution O b. Noise pollution c. Land pollution O d. Both a and c

B. Match the following. l. Environment a. noise pollution

L r u

C

C

C

2. Air pollution b. waste from industries and sewage

3. Water pollution 4. Hypertension and hearing impairment 5. Excessive chemicals 6. Land pollution

C. Write two examples of the following. 1. Names of things that surround us

2. Types of pollution

3. Causes of noise pollution

4. Diseases caused by air pollution 5. Gases that cause Greenhouse Effect 6. Diseases caused by water pollution 7 · Reason of soil erosion

pipelines

c. Greenhouse Effect d. land pollution e. glass, plastic and metal f. living and non-living things

-

D . Fill in th e blanks . 1. Our en vironmen t con sist s of bot h ______ a nd -------2 · Pollution cause harmfu l effects on our _______ _ 3 - The harmful substances t h at m a ke our environment dirty and cause pollution ar _____ . e calleii

~

4 . Excessive u se of ______ causes land pollution. 5. causes soil erosion. 6 - should be constructed far away from the cities.

E. Stat e whether the following statements are true or false. 1. Environment is very important for the survival of all living things. 2. Burning of firew ood and coal causes air pollution. 3. Oil spillage from ships does not cause water pollution. 4 . The unpleasant sounds which cause discomfort are called noise pollution. 5 . Deforestation is a cause of water pollution. 6. We should use cloth bags instead of polythene bags.

F. Short Answer Questions. 1. What is air pollution? 2 . Define Global Warming. 3. H ow is w ater pollution caused by oil spillage from ships? 4 . H ow does water in villages gets polluted? 5 . E xp la in two reasons of noise pollution. 6 . Write harmful effects of noise pollution. 7 . What is land pollution? Write one reason that causes land pollution. 8 . Write two ways to reduce air pollution.

G. Long Answer Questions. 1. What are the sources of air pollution? 2 . Write the harmful effects of air pollution on our environment. 3. Define water pollution. Write the causes of water pollution. 4. What are the causes of land pollution? Write the harmful Effects of land pollution. 6 _ Write a note on green house effect.

'Think Hard

---

. . dmw Collect at least three water samples from vanous areas 1n your city. Take filter paper an h_ L,.,,_ c:,amnle Observe which water sample contains more.Jnuu.1.l!.H.u ruse.us h · 0 ".JI ,,.. .llT_.Q.J..,.,.__._,,. •