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Teacher's Manual

CCE Worksheets

SCIENCE

FORMATIVEASSESSMENT

Class X Term 2

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Class X/ Term 2/ Formative Assessment Management of Natural Resources

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Teacher's ManualCCE Worksheets SCIENCE Class X/ Term 2/ Formative Assessment

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*CLASS WORK Content Coverage :pH of water

To enable students to :

Have an idea about the pH of water

To gain idea about the different water bodies found in their town.

Understand the difference in quality of water and pollution levels.

Finding out the various reason for water pollution.

PROCEDURE :

Make groups of 5-6 students each in the class.

Every group should be instructed to collect different water samples from different sources like ponds, lakes, sewage or drinking

water etc.

Samples should be from different areas of the town.

Check the pH level of the different water samples.

Complete the table given below.

Compare the pH levels with drinking water.

Show which water is more polluted according to your experiment.

Every student has to complete his/ her sheet and submit it along with the sheets of all the group members.

ASSESSMENT CRITERIA :

1/2 mark for each water sample collected till a maximum of 5 marks. 1/2 mark for correctly finding the pH of each sample till a maximum of 5 marks .

1/2 mark for correctly drawing the conclusions of each water sample till a maximum of 5 marks

STUDENT WORKSHEET

Time : 3 days Marks : 15

APPARATUS REQUIRED :

Litmus paper Small waste plastic/ glass bottles

Water samples


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OBSERVATION TABLE :

Is the waterpolluted

Probable Reason for pollution

1

2

3

4

5

6

7

8

9

10

Conclusions

S. No. Water source Locality pH


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* HOME WORK Content Coverage :Reduce, Recycle & Reuse

To become more environment conscious.

Understanding the concept of environmental conservation and sustainable development.

Understanding the changing perceptions of people for sustainable development.

Learning Objectives

PROCEDURE :

This worksheet to be given to the students after the teacher introduces the concept of Reduce, Recycle & Reuse.

Students have to fill up the columns according to their knowledge of their surroundings.

The teacher can also introduce the concept of sustainable development along with the changing perception of peopletowards it.


Variety of activities suggested in the table 4 marks

Correctness of classifying the activities 4 marks

Answer to the concluding question 2 marks

STUDENT WORKSHEET

Time :2 days Marks :10

DIRECTIONS : List various activities related to conservation of environment you have observed in your city / surroundings.

Complete the following table by listing the maximum such activities you have observed and classify them under the correct

headings.

S. No. REDUCE RECYCLE REUSE

1

2

3

4

5

6

CONCLUDING QUESTION :

What, according to you, can these activities lead to?

_____________________________________________________________________________________________

_____________________________________________________________________________________________

_____________________________________________________________________________________________


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*CLASS WORK Content Coverage :Waste Matter

To develop an understanding of how the municipal corporations handle the waste matters.

To understand the difference between the various types of waste matters.

To develop an understanding of things which can be recycled or composted.

Learning Objectives

PROCEDURE :

This worksheet to be given to the students after the teacher introduces the concept of handling of various kinds of waste

matters.

The teacher can also introduce the concept of composting and recycling.


1 mark for each correct classification.

1 mark for answer to the concluding question.

STUDENT WORKSHEET

Time : 15 min. Marks :10

DIRECTIONS : To segregate the waste matters, the Municipal Corporation of your town / city has placed 3 different bins. The

instruction given are :

Green bin should contain wet organic waste.

Blue bin should contain dry organic waste.

Recycling bin should contain materials that cant be composted but recycled.

The given table lists various waste matters. Classify each of them under the correct headings based upon the instructions of the

Municipal Corporation.

Blue Green


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Household wastes Blue bin Green bin Recycle bin

Broken mirrors

Fruit peels

Plastic bags

Aluminium foil

Juice cans

Wooden spatula

Old tissue paper

Plastic water bottle

Cold coffee cans

CONCLUDING QUESTION :

What, according to you, is the benefit of keeping 3 separate variety of bins?

_____________________________________________________________________________________________

_____________________________________________________________________________________________

_____________________________________________________________________________________________

SOLUTIONS

1. Because the water is more dense than the air making you lighter in the water than in air. You don't really weigh less, but the

water pushes you up (buoyant force).

2. You burn more calories with swimming than with walking or jogging, and it puts no strain on your knees and ankles.3. Improves cardiovascular health; helps to strengthen lungs; builds endurance and muscle strength; maintains the size of

muscles and tone the body, while increasing strength.

4. Cross-training (also known as conditioning) refers to training in different ways to improve overall performance. It takes

advantage of the particular effectiveness of each training method, while at the same time attempting to neglect the shortcom-

ings of that method by combining it with other methods that address its weaknesses.

5. Virdhaval Khade; Khazan Singh Tokas

6. A - (v); B - (i); C - (i); D - (vi); E - (iv); F - (ii); G - (iii);

Note Basketball has been given to confuse you.

7. kicking workouts to tone the leg muscles, which is not possible by swimming.

8. The athletes across sports swear by swimming as a great way to cross train and keep the body in shape during the off-season.


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*CLASS WORK Content Coverage :Waste Recycling

To enable students to :

Understand the uses of different waste matter.

Gain knowledge about biodegradables.

Learning Objectives


2 marks each for correctly filling the blank boxes in the given diagram.

The answers given by students will vary as each student will understand the picture in his own way and label the boxes

accordingly. The teacher has to mark a student on the basis of his understanding.

STUDENT WORKSHEET

Time : 10 minutes Marks : 10

DIRECTIONS : Study the figure given below regarding WASTE RECYCLING.The figure shows various waste things which

generate from our houses. The figure further illustrates the various finished goods which can be produced from these waste things.

Study the chart carefully and fill up the blanks boxes.

WASTE RECYCLING

Carpet Waste.Cutouts & Rejects

Plastic Tables & Chirs

Recycled Paper

Carpet Underlay

Ash


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SOLUTIONS

Low cost Rugs

WASTE RECYCLING

Carpet Waste.Cutouts & Rejects

Plastic Tables & Chirs

Recycled Paper

Cardboard &Paper Waste

Extrusion &Backing

Offcuts Waste

Waste yarn& Fibres

Carpet Underlay

Ash

Low Cost Housing


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*CLASS WORK Content Coverage :Environmental Conservation

Objective to learn :

Make the students environmentally conscious.

Understand the ill-effects associated with industrialization / economic development.

Understand the idea of sustainable development & environmental conservation.

Understand the latest happenings in the world and steps taken for environmental conservation.

Learning Objectives

PROCEDURE :

Students will be given the worksheet prior to the group discussion day so that each student can prepare on the topic.

Divide the class into groups of 10-15 students each. Make the sitting arrangement as in a group discussion. Invite the groups one by one for the discussion. While a group is

discussing, other groups may have to wait outside for their chance (if the teacher feels so).

The class teacher can invite the principal or some senior teacher as a guest judge.

Each group will be given 10 minutes for the discussion. The teacher will act as a mediator so as to avoid chaos or confusion in

the group. The teacher will try that the group reaches a conclusion by the end of the discussion.

The students will be given a piece of paper so as to write their points 1 minute before the discussion starts.

The teacher will assess the students on the basis of the assessment criterion listed below.

After the 10 minutes are over, the teacher should ask each and every student in the group to sum up the discussion in 1 sentence only.


S. No.Name of the

student

Spoken

Content (2

marks)

Listening

skills (2

marks)

Analytical skills

(2 marks)

Communication

skills (2 marks)

Concluding

statement (2

marks)

Total Marks

STUDENT WORKSHEET

Time : 30 minutes Marks :10

DIRECTIONS :

You shall come prepared to the class on the given topic. You can refer books, journals or can take the help of the internet. As the topic is controversial, you shall take a firm stand during the discussion, whether environment conservation should be

the main focus area or countries shall focus on economic growth irrespective of the damage to the environment.

The student shall try and use real life examples / incidents to strengthen their point. The examples can be from India or any other

part of the world.

The students are advised to stick to the context of the topic.

The teacher can interfere at any moment during the discussion whenever the discussion goes out of context or there is a chaotic

situation.

The discussions would be conducted in groups of 10-15 students. Each group will be given a time of 10 minutes to discuss the

topic. Every member of the group shall try to arrive at a conclusion by the end of 10 minutes.

Every student in the group shall be given a chance to speak. You must remember that a good speaker is a good listener too.

TOPIC FOR GROUP DISCUSSION :

Environmental concerns should not be allowed to slow down economic growth.


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* HOME ASSIGNMENT Content Coverage :Sustainable Development

Learn some topics by self-study and collaboration.

Understand how to collect data

Develops the Knowledge of integration of different points into proper sequence.

Learning Objectives

PROCEDURE :

Students should be instructed to collect data from different books, journals or any other media (internet) etc.

The teacher shall discuss the topicGo Greenwith the students before handing over the project worksheets. The

teacher shall also discuss the various issues involved and the importance of Go Green.


S.No.Name of

student

Content relevance to

the topic (3 marks)

Illustrations

made (3 marks)

Variety of

points (3

mark)

Presentation

(1 mark)

Total

markRemark

1

2

3

4

5

6

7

8


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STUDENT WORKSHEET

Time :2 days Marks :10

PROJECT :

GO GREEN & SAVE GREEN

Over decades together, the depletion of ozone layer and its preservation had been the high priority of environmentalists and

developed nations and campaigns about educating the masses of the importance of reducing carbon emissions thereby

helping the preservation of the ozone layer. Now, there are a lot more issues along with this that has been worrying the

environmentalists, one of this being depletion of natural resources and increase in CO2emissions, pollution, wastage of

resources, and so on. With the expected world's population to explode to around 9 billion by 2050, it has become a great

concern that people will only have 25% of the resources that were available in 1950. Already, some of the world's natural

resources have been depleted and with this growing population, it could lead to a major crisis of the natural resources.

It is high time we start saving clean air, fuel sources, water and soil for the future generations along with saving money and

assets for them. How many of us agree with this thought? So why throw away things that could be recycled? So what's the wait

for. There are a lot of things that we as a common man can bring changes and reforms. Let's GO GREEN, let's get hand in hand,

strive to reduce emissions and wastage, encourage recycling and pave way for pure and clean surroundings for our future

generations.

DIRECTIONS :Present the data in the form of a folder. The title page shall clearly signify the name of the project and the student

submitting it. You should follow the following flow of points during your project work. Try and use pictures and illustrations for a

better presentation.

What i s Go Green?

Necessity to Go Green

Global warming The international issue

The tussle between the developed and the developing nations.

Different international norms for Go Green

Carbon credits

What benefi ts can Go Green br ing to our planet earth?

Management of Go Green

Save energy Save water

Save natural gas Eat green

Green technology Read green

How can we contribute in and around our surroundings?


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*CLASS WORK Content Coverage :Whole Chapter

Clarity of basic concepts related to the topic.

Basic understanding and definitions related to the chapter.

Learning Objectives

PROCEDURE:

Management of natural resources may be explained to the students in previous periods.

Student will be given the worksheet with crossword puzzle and will be asked to fill up the blank spaces to complete it.

STUDENT WORKSHEETTime : 15 minutes Marks : 10

DIRECTIONS : Given below is a crossword puzzle. Fill in the blank square boxes to form a complete word / term by using the given

clues. You have to fill an alphabet in every small square.

1

6

5

2

3 8 4 9

10

7

ACROSS DOWN

2. Replantation of forest area which has been damaged or cleared 1. Wild life protected area maintained by

during exploitation. government .

3. Multipurpose trees and shrubs are planted on the side of 8. Repeated use of article till it gets broken

crop field . or disfigured is an example of

6. Collection and storage of rain water and surface run off for filling 4. Processing of the waste articles to form new

small water bodies or recharging ground water . product is an example of

7. Wild life which is facing high risk of extinction. 5. An area rich in biodiversity which is beingthreatened by human activity as well as other forces.

10. An area which is reserved for the conservation of animals only. 9. Less use of any energy is an example of


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SOLUTIONS

1N

A

6W A T E R H A R V E S T I N G

I 5H

2A F F O R E S T A T I O N

N T

3A G

8R O F O

4R E S T

9R Y

L E E P E

P U C O D

A S Y T U

10S A N C T U A R Y E C C

K L E

7

E N D A N G E R E D


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*CLASS WORK Content Coverage :Whole Chapter

To provide remedial measures on any topics to clear the overall concepts of individual

students.Learning Objectives

PROCEDURE : The teacher will divide the class in groups of 4 to 6 students and will appoint one student as the Group Leader. The

teacher will instruct the Leader to help the other students in case they face any difficulty.

ASSESSMENT CRITERA :

Marks as given in the worksheet.

STUDENT WORKSHEET

Time :Need based Marks : 25

DIRECTIONS : You have to attempt all the 5 questions given below on your own. In case of any difficulty you can consult your

Group Leader and complete the sheet.

1 Fill in theBlanks(1 mark each)

1. Water in a reservoir is ___________ resource.

2. Ganga action plant started in ___________.

3. Chipko movement first started in ___________.

4. The most rapidly dwindling natural resource in world is ___________.

5. Kyoto protocol was signed to reduce ___________ gas.

6. The major constituent of biogas is ___________.

7. The main causative of green house gas is ___________.

8. ___________ are harmless bacteria present in human intestine, which indicates the degree of sewage pollution of water.

2 Short Answer Questions

1. What are the advantages of ground water recharging? (2 marks each)

2. How coal and petroleum were formed?

3. Why should we conserve forests and wild life?

4. How can we reduce the use of Coal and Petroleum?

5. Write the names of 4 toxic gases which causes air pollution?

3 Matchingthecolumn(2 marks)

Column - I Column - II

(a) Amrita Devi Bishnoi (i) Chipko movement

(b) A.K. Banerjee (ii) Appiko movement

(c) Sunderlal Bahugana (iii) Protection of Khejri trees

(d) Pandurang Hegde (iv) Protection of Sal forest

A B C D E F


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4 Grid Based QuestionINSTRUCTION : Complete the following grid about the various water harvesting techniques used. One has been filled for your

help. (5 marks)

Name of the water

harvesting technique Kulh Khadin Bundhis Eris Bandharas Surangan

Location Kerala

Types of collection of

water

Stream diverted

into man made

channel

SOLUTIONS

1 Fill in theBlanks1. Renewable 2. 1985

3. Reni village in Garhwal of Uttarakhand 4. Forest5. Carbon dioxide 6. CH4(Methane)

7. CO2(Carbon dioxide) 8. Coliform bacteria

2 Short Answer Questions1. Benefits of ground water recharging :

(i) It ensures water availability in non-rainy seasons.

(ii) It reduces chances of blooding during rainy seasons.

(iii) Ground water level does not fall as it is regularly recharged.

(iv) Water becomes available for drinking as well as irrigation.

2. Coal and Petroleum are fossil fuels. These fossil fuels are energy yielding carbon containing combustible substances formed

million of years ago from degradation of vegetation and other organic matter inside the earth under high pressure, heat and

anaerobic conditions. Coal and Petroleums are the exhaustible as well as non-renewable resources.

3. We should conserve forests because they not only provide a number of economically important products but also provideshelter to wild animals, protect soil, regulate water flow and climate.

4. Coal is mostly used in thermal power stations while petrol and diesel are employed in motor vehicles, ships and aeroplanes. Find

out ways and means to reduce the use of coal and petroleum.

(i) Use of alternate source of energy (ii) Avoiding wastage of energy by switching off lights, fans, T.V., radio and domestic

gadgets not in use (iii) More efficient heating devices and better internal combustion engines. (iv) Use of compact fluoroscent

tubes instead of incandescent bulbs (v) Use energy efficient appliances (vi) Gasohal (petrol + alcohol) instead of gasoline (vii)

Hybrid engines (viii) Taking stairs instead of lifts for short distances (ix) Use of public transport of car pool instead of personal

vehicles (x) Walking or cycling for short distances (xi) Wearing of an extra sweater instead of using heating device (heater or sigri)

during cold days.

5. The major toxic gases are : (1) CO2; (2) Methane; (3) Chloro fluoro carbons (refrigerators, sprays); (4) Nitrous oxide (NO2)

3 Matchingthecolumn

A (iii) B (iv) C (i) D (ii)

4 Grid Based Question

Name of the water

harvesting techniqueKulh Khadin Bundhis Eris Bandharas Surangan

LocationHimachal

PradeshRajasthan

Madhya

Pradesh

Tamil

NaduMaharashtra Kerala

Types of collection of

water

Divert water

from the

natural s tream

for irrigation

Embakment

across lower

hill slopes

Reservoir Tank Check Dams

Stream diverted

into man made

channel

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