grade four consolidatedworksheet

GRADE FOUR CONSOLIDATEDWORKSHEET

SOCIAL – STUDIES

MINISTRY OF EDUCATION

GRADE FOUR CONSOLIDATED WORKSHEET

SOCIAL-STUDIES

WEEK 1

TOPIC: RULES AND RESPONSIBILITIES

CARING FOR OUR ENVIRONMENT

What is our environment?

Our environment is made up of all things around us, those

which are nearby as well as those further away.

Civil Responsibility

All persons should have a civil responsibility for protecting the

environment.

They should obey the laws of the country. They should not deface

buildings; throw papers and other garbage on the streets and in drains.

The role of the E.P.A. in any country is to aid in its development.

These include overseeing the protection of wildlife, keeping the

environment safe of harmful pollutants, conservation of energy among

others.



SOCIAL-STUDIES

WEEK 1

TOPIC: HEALTH AND SAFETY: POLLUTION

Name: _________________________________ Date: ____________________________

FACTS/TIPS:

What is pollution?

Pollution is any unwanted and harmful substance that is added to

the environment.

Types of Pollution

-Land pollution -Water pollution -Air pollution -Noise pollution

Land Pollution:

Land pollution is anything that damages, destroys or contaminates

the earth‟s land surfaces as a result of man‟s activities. Land pollution

can be caused by factories, farming, mining operations, vendors

and construction workers.

Some ways in which the land can be polluted:

-When trash or garbage from homes, schools and factories are not

disposed of properly.

-When farmers throw chemicals into the soil in the form of pesticides,

insecticides and fertilizers during agricultural practices.

-Mining for minerals such as gold can also contribute to the

destruction of the earth‟s surface by producing large holes in the

ground and causing erosion.

-When construction workers dump waste articles such as wood,

metal and bricks on parapets at construction sites.

-When waste materials are dumped on overcrowded dump sites.

ON YOUR OWN:

ANSWER ALL QUESTIONS

Write your answers on the lines.

1. What is pollution?

2. List two types of pollution.

3. In two sentences explain how mining operations can cause land

pollution.

4. Name some construction materials that can cause pollution if

dumped on land or drains?

5. Name one chemical which is used by farmers that can cause

contamination of the soil.

HOMEWORK:

Residents in your community are dumping garbage on an empty

land next to your house. This is affecting you and your family. Draw a

signboard to prevent them from dumping garbage on the empty

land.



SOCIAL-STUDIES

WEEK 1


Name: _________________________________ Date: ____________________________

FACT/TIP:

Effects of Land Pollution:

There can be serious effects of land pollution in relation to humans,

animals, water and soils.

Pictures showing some problems caused by Land Pollution

skin lesions effects on wildlife

damaged vegetation distraction to tourist

Diarrhea

Contaminated land

and the environment

Chemical materials that

pollute the soil

Overcrowded

dumpsites

- can cause problems

in the human

respiratory system.

-can cause problems

on the skin such as

skin irritation.

-can cause various

kinds of cancers.

- can damage crops.

-can kill vegetation.

-can poison birds,

animals and aquatic

lives.

-can lead to infertile

land for agricultural

purposes.

- can destroy homes of

animals.

-very bad smell

and odors in the

community.

- they breed flies

and rodents like

rats and mice

which transmit

diseases to

humans.

-they do not attract

tourists to the

areas.

-most dumpsites

are always burning

and can lead to

health issues when

inhaled.

Ways in which land pollution can be reduced:

-Reuse and recycle any items that you can. Items like clothing,

bottles and shopping bags can be used over and over again.

-Personal litter should be disposed of properly. Some household

waste can be recycled.

-Educate people about the harmful effects of littering.

-Encourage others to throw litter in bins.

-Store chemical waste in containers.

-Avoid the use of pesticides.

-Buy products that have little packaging.

ON YOUR OWN:

ANSWER ALL QUESTIONS


1. Name two effects of pollution caused by overcrowded dumpsites.

2. Which of the following health problems is not related to pollution?

Respiratory illnesses

Blindness

Irritation of the skin.

Cancer

3. State one way in which we can reduce pollution in the home.

4. Identify two items in the home that can be reused.

5. What advice will you give to a farmer who has pesticide to dispose

of?

HOMEWORK:

You notice that your mother always buys fruits and vegetables in

plastic bags when she goes to the market.

Write two things that you will encourage your mother to do with

those plastic bags.



SOCIAL-STUDIES

WEEK 1


Name: _________________________________ Date: ____________________________

Write your answers on the line.

1. On the drawing below write the type of pollution that is missing.

2. What is land pollution?

3. List two ways in which the land can be polluted.

4. Explain how schools can help to reduce pollution.

5. One disadvantage of gold mining operations on land is

6. State one way in which construction workers can pollute the land.

7. Which of the following statements about land pollution does not

belong in the list below?

● Land pollution is caused by human activities.

● Trash and pesticides can cause land pollution.

● Planting of flowers to beautify the environment.

8. List two chemical wastes that can pollute the environment.

9. Identify two effects the chemicals listed above can have on the

land.

10. Explain the term „recycle‟.

11. How can recycling help in land pollution?

Use the statements in the box below to answer question 12.

Toys can be replaced.

It is fun to buy new toys.

Toys can be used by another person instead of dumping it.

12. Joy gave all the toys she did not want to her friends. How can this

action help to stop pollution?

13. State one form of land pollution that can lead to soil erosion.



SOCIAL-STUDIES

WEEK 1


NAME: _________________________ DATE: ____________________

FACTS/TIPS:

Water pollution is the contamination of water bodies such as

lakes, rivers and oceans, very often caused by human activities.

It is caused when pollutant such as waste particles, chemicals and

other substances are discharged into these waterways.

Ways in which water can become polluted:

-When industrial and factory wastes such as sulphur, lead and other

toxic materials are poured into rivers, trenches and seas.

-When organic waste distributed by domestic sewage from

household bathrooms, toilets, kitchens, laundries and drains is

dumped into oceans, rivers, lakes and other bodies of water.

-When the liquids from household septic tanks are drained out from

a drainage pipe into nearby waterways.

-When household garbage that is non-biodegradable, such as

styrofoam boxes, plastic bags and bottles are carelessly dumped

into trenches and rivers.

-When there are oil spills from barges and ships or from the

accidental leakage of crude oil during transportation.

-When farmers carelesly contaminate the water with fertilizers and

pesticides by washing their equipment in the trenches.

OWN YOUR OWN:

Write your answers on the lines. 1. What is water pollution?

________________________________________________________

2. List two types of toxic materials that factories would dump into

the water ways?

(i) _____________________________________________________

(ii) _____________________________________________________

3. Name two non-biodegradable materials other than the ones

mentioned above that can cause water pollution.

(i) _____________________________________________________

(ii) _____________________________________________________

4. Explain how you can encourage the farmers in your community to

avoid water contamination?

__________________________________________________________

5. Discuss how oil spills can cause water pollution.

___________________________________________________________

HOMEWORK:

The pie chart below shows the decimal fraction of the different

causes of water pollution that is affecting the Atlantic Ocean.

Look at it carefully and answer questions 1 to 4.

Forms of pollution affecting the Atlantic Ocean:

1. In what way is the ocean being affected the most?

____________________________________________________________

2. What is the amount of oil spill that is accidentally leaked into the

ocean?

____________________________________________________________

3. Which of the following causes of water pollution listed above has

the least?

________________________________________________________

4. What can the government do to ensure that there is a decrease

in the amount of sewage being dumped into the ocean?

____________________________________________________________

____________________________________________________________



SOCIAL-STUDIES

WEEK 1


NAME: _______________________________ DATE: __________________________

FACTS/TIPS:

Effects of water Pollution:

There are many effects of water pollution. It is harmful to aquatic lives, causes

disruption of food-chains and spreads diseases to humans.

Death of aquatic lives:

-It kills aquatic organisms such as turtles, crabs, fishes and plants. This happens

when pollution in the water reach a point where there is not enough oxygen for

the fish to breathe. The fish will eventually suffocate and die. The plants will also

die.

Disruption of food- chains:

-It affects the entire food chain. Small fishes absorb pollutants, such as

chemicals, into their bodies. Then bigger fishes eat the smaller fishes and get

the pollutants too. Birds or other animals may eat the bigger fishes and be

harmed by the pollutants.

Diseases in humans:

-It can cause flooding and spread water borne diseases to humans. People can

get diseases such as diarrhea, cholera and typhoid from eating or drinking

contaminated food.

Ways in which water pollution can be reduced:

-Provide suitable facilities for the collection and disposal of domestic waste.

-Avoid the use of chemical pesticides such as weed killers or other fertilizers in

the garden.

-Prevent the careless dumping of solid and liquid waste on land.

-Use less non-biodegradable materials and limit the use of washing

detergents such as bleach, soap and dishwashing liquids.

ON YOUR OWN:


1. State two effects of water pollution.

_____________________________________________________________________

_________________________________________________________

2. What can happen after the small fishes absorbed pollutants?

______________________________________________________

3. List two ways in which water pollution can affect humans.

(i) _________________________________________________

(ii) _________________________________________________

4. Explain what is meant by water borne disease.

______________________________________________________

5. List two ways in which you can encourage the residents in your

community to promote the reduction of water pollution.

(i) ____________________________________________________

(ii) ____________________________________________________



SOCIAL-STUDIES

WEEK 1


NAME: _______________________________ DATE: __________________________

ANSWER ALL QUESTIONS.

Write your answers on the line.

1. Identify one cause of water pollution.

________________________________________________________.

2. List two ways in which human activities can cause water

pollution.

(i) ____________________________________________________

(ii) ____________________________________________________

3. Name one disease that can be caused by drinking

contaminated water.

__________________________________________________________

4. Which of the following is an example of water pollution?

(a) Oil Spills from ships (b) Animals walking along the beach

(c)Drinking water out of a plastic bottle

5. Explain in your own words how can sewage contaminate water

bodies.

______________________________________________________________________________________

______________________________________________________________________________________

6. What do you think can happen to fishes if there is not enough

oxygen in the water?

_____________________________________________________________

7. Water pollution can affect an entire food chain.

Discuss how humans can be affected.

________________________________________________________________

________________________________________________________________

________________________________________________________________

8. How do you think the dumping of garbage in trenches can lead

to flooding?

____________________________________________________________

Read the information below and answer questions 9 and 10.

9. Identify one effect this can have on the environment.

_____________________________________________________________

10. State one way in which the government can help to reduce

this form of water pollution.

Household garbage is carelessly

dumped into trenches,

seas and rivers.



SOCIAL-STUDIES

WEEK 1


NAME: _______________________________ DATE: _______________________

FACTS/TIPS:

Air Pollution:

Air pollution occurs when gases, dust, smoke or odour get into the air and

make it unclean and harmful to humans, animals and plants. It can result

from both human and natural causes

Ways in which the air can become polluted:

Natural causes of air pollution include forest fires, volcano eruptions, wind

erosion and dust storms. These natural causes do not occur very often.

Human activities that resulted in air pollution.

-The burning of fossil fuels like coals, petroleum and natural gas.

-Emissions of dangerous gases such as carbon monoxide, organic

compounds, and lead from vehicle exhaust.

-The depositing and burying of waste for landfills which generate

methane.

-Factories, industries and incinerators release a large amount of carbon

monoxide and chemicals into the air through the reckless burning of

garbage.

-Household and farming chemicals such as household cleaning products,

insecticides, pesticides and fertilizers emit harmful chemicals into the air.

ON YOUR OWN:


1. What is air pollution?

________________________________________________________

2. List one way in which air pollution can occur naturally.

__________________________________________________________

3. Name one dangerous gas that emits from vehicle exhaust.

___________________________________________________________

4. State one human activity which can cause air pollution.

___________________________________________________________

5. Which of the following forms of air pollution listed below,

is not done by human activities?

HOMEWORK:

Study the drawing below and answer the questions.

1. Identify two causes of air pollution in your community.

______________________________________________________________

2. What can you do to help prevent these causes of air pollution?

_______________________________________________________________

(a)Burning of fossil fuels (b)Using of insecticides

(c) Emission from vehicle‟s exhaust (d)Volcano eruption

_______________________________________________________________

_______________________________________________________________



SOCIAL-STUDIES

WEEK 1

TOPIC: POLLUTION –EFFECTS OF AIR POLLUTION

NAME: _______________________________ DATE: ______________________

FACTS/TIPS:

Effects of air pollution.

Air is important for living things to stay alive. However, when the air is

polluted it can have serious effects on humans, plants and animals.

Effects on Humans:

It increases the risk of several respiratory disorders, heart diseases

and lung cancer.

It causes irritation to eyes, mouth, nose and throat.

It increases the risk of pneumonia, asthma and bronchitis.

Effects on Plants:

The burning of fossil fuels releases harmful substances in the

air. The water droplets combine with these pollutants,

become acidic and fall as acid rain which damages plant

life.

Effects on Animals:

It compels the animals to leave their habitat and shift to a new

place.

It renders them to stray.

It leads to the extinction of a large number of animal species.

Ways in which air pollution can be reduced:

Reduce, reuse, or recycle waste instead of burning garbage.

Use energy wisely at home or at school. Turn off lights, computers,

and other electrical appliances when not in use.

Use energy efficient light bulbs and appliances.

Use bike or walk when necessary.

Use environmentally friendly cleaning products whenever possible.

Avoid the use of aerosol spray products.

Make compost heap and avoid burning garbage.

ON YOUR OWN:


1. State one effect of air pollution on animals.

____________________________________________________________

2. Circle the letter near the correct answer.

Identify one way by which people can reduce air pollution?

(a)Create major forest fires. (b) Use more pesticides to kill bugs.

(C) Use less aerosol spray products.

3. Do you think air pollution is dangerous? Briefly explain your answer.

_____________________________________________________________________

_____________________________________________________________________

___________________________________________________

4. State one advice you can give to your teachers in order for them to

help reduce air pollution in your school.

___________________________________________________________

5. List two effects air pollution may have on the pupils in your school.

(i) ______________________________________________________

(ii) ______________________________________________________

HOMEWORK:

1. Explain the effect of air pollution on plants.

______________________________________________________________

2. In the box provided below draw a picture of a plant that is affected by

air pollution.

grade four consolidatedworksheet

Documents