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SUSHIL HARI INTERNATIONAL RESIDENTIAL SCHOOL KELAMBAKKAM 603103 HOLIDAY HOMEWORK - 2020 ENGLISH STD VIII TO IX MONTH APRIL NOTE: Please complete the holiday homework in the order specified below. Use an 80-page notebook to complete the given work. 1. Dialogue writing 2. Poem paraphrase and memorise the given poem. 3. Express your views 4. Homophones 5. Hints development 6. Comprehension 7. Prefix/Suffix 8. Learn singular/plural (pages 111 and 112 from Term I MCB) and write for 3 times. 9. Paragraph writing (80-100 words): a. Your favourite sports personality b. Imagine your green world c. Being safe 10. Construct sentences: a. Popular b. Strange c. Earnestly d. Sympathetic e. Fortunate f. Constant g. Dependable h. Exceptional i. regularly j. admiration 11. Write only the answers.

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Page 1: SUSHIL HARI INTERNATIONAL RESIDENTIAL SCHOOL ......SUSHIL HARI INTERNATIONAL RESIDENTIAL SCHOOL KELAMBAKKAM – 603103 HOLIDAY HOMEWORK - 2020 ENGLISH STD – VIII TO IX MONTH –

SUSHIL HARI INTERNATIONAL RESIDENTIAL SCHOOL

KELAMBAKKAM – 603103

HOLIDAY HOMEWORK - 2020

ENGLISH

STD – VIII TO IX MONTH – APRIL

NOTE:

Please complete the holiday homework in the order specified below. Use an 80-page

notebook to complete the given work.

1. Dialogue writing

2. Poem paraphrase and memorise the given poem.

3. Express your views

4. Homophones

5. Hints development

6. Comprehension

7. Prefix/Suffix

8. Learn singular/plural (pages 111 and 112 from Term I MCB) and write for 3 times.

9. Paragraph writing (80-100 words):

a. Your favourite sports personality

b. Imagine your green world

c. Being safe

10. Construct sentences:

a. Popular

b. Strange

c. Earnestly

d. Sympathetic

e. Fortunate

f. Constant

g. Dependable

h. Exceptional

i. regularly

j. admiration

11. Write only the answers.

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சுஷில் ஹரி பன்னாட்டு உறைவிடப்பள்ளி

விடுமுறை வடீ்டுப் பாடம் _ 2020

ஒன்பதாம்வகுப்பு தமிழ்

I. நீங்கள் நாள்ததாறும் வகுப்பறையில் மிகுதியாகப் பயன்படுத்தும் ச ாற்கறளப்

பட்டியலிட்டு, அவற்ைில் இடம்சபற்றுள்ள பிைசமாழிச் ச ாற்களுக்கு நிகரான

தமிழ்ச்ச ாற்கறள அைிந்து எழுதுக.

ச ாற்பட்டியல் பிறம ொழிச் ச ாற்கள் நிகரான தமிழ்ச் ச ாற்கள்

வகுப்பு, புத்தகம், பிளாக்

தபார்டு, தபனா, சபன் ில்,

தநாட்டு,

ப்ளாக்தபார்டு

(BLACK BOARD)

கரும்பலறக

....................................

....................................

....................................

....................................

....................................

....................................

II.உறரயாடறல நிறைவு ச ய்க. அவற்றுள் இடம்சபறும் பிைசமாழிச் ச ாற்கறளத்

தமிழ்ப்படுத்துக.

அருண் : ஹதலா! நண்பா !

நளன் : ...............................

அருண் : ஆமாம்! சடன் இயர்ஸ் ஆச்சு இல்றல யா?

நளன் : ஆமாம். நான் இப்ப மல்ட்டி தநஷனல் கம்சபனி ஒன்ைில் பிராஜக்ட் தமதனஜரா

இருக்தகன். நீ?

அருண் : ..............................

நளன் : அந்த காதலஜ்ல தான் என் தம்பி பஸ்டு இயர் படிக்கிைான்.

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அருண் : ..................................

நளன் : றப! றப!

.................................... .................................... ....................................

.................................... .................................... ....................................

III. தமிழ் எண்களில் எழுதுக.

1 2 3 4 5 6 7 8 9 10

க உ ௩ ௪ ௫ ௬ ௭ ௮ ௯ ௧௦ / ௰

பன்னிரண்டு

பதின்மூன்று

நாற்பத்து மூன்று

எழுபத்சதட்டு

சதாண்ணூறு

IV.நிற்க அதற்குத் தக...

i) என் சபாறுப்புகள்...

அ) தண்ணறீரச் ிக்க னமாகப் பயன்படுத்துதவன்.

ஆ) வகுப்பறை யில் நண்பர்க ள் றவத் திருக்கும் சபாருள்கள் மீது நாட்டம் இருந்தும் அவற்றைத்

சதரியாமல் எடுக்கும் ஒழுங்கற்ை ச யறலச் ச ய்யமாட்தடன்.

இ) அறைறய விட்டு சவளிதய ச ல்லும்தபாது மின்வி ிைி, மின்விளக்குகறள நிறுத்திவிட்டுச்

ச ல்தவன்.

ஈ) -------------------------------------------------------------------------------

உ) -------------------------------------------------------------------------------

ஊ) ------------------------------------------------------------------------------

ii) நிற்க அதற்குத் தக...

உங்களுறடய நாட்குைிப்பில் இடம்சபற்ை ஒரு வாரத்திற்குரிய மகிழ்ச் ியான ச ய்திகறளத்

சதாகுத்து அட்டவறணப்படுத்துக.

திங்கள் வருத்தம் சதரிவிக்கிதைன், சபாறுத்துக் சகாள்ளவும் ஆகிய

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ச ாற்சைாடர்கறள இன்று இரண்டு முறை வகுப்பில் பயன்படுத்திதனன். இதனால் புதிய நண்பர் கிறடத்தா ர்.

ச வ்வாய்

புதன்

வியாழன்

சவள்ளி வடீ்டிற்குத் ததறவயான சபாருள்கறள நானாக முன்வந்து வாங்கிக்

சகாடுத்ததன். அம்மா பாராட்டினார்.

னி ஞாயிறு

iii ) நிற்க அதற்குத் தக...

நான் பாராட்டு சபற்ை சூழல்கள்

அ) கூடுதலாக மீதம் சகா டுத்த கறடக்கா ரரிடம் அந்தப் பணத்றத மீண்டும் அளித்த தபாது.

ஆ) கட்டுறர ஏடுகறளக் கீதழ தவைவிட்ட என் ஆ ிரியருக்கு அறத எடுத்துத் தந ் ததபாது.

இ) ............................................................................................................

ஈ) ...............................................................................................................

Iv ) நிற்க அதற்குத் தக...

மூகத்திற்கு நீ ச ய்ய தவண்டியவற்றைக் குைிப்பிடுக.

1. குப்றபகறளக் குப்றபத்சதாட்டியில் தபாடுதவன்.

2. _______________________________________________________

3. . _______________________________________________________

4. . _______________________________________________________

5. . _______________________________________________________

v. குறுக்சகழுத்துப் புதிர்

இடமிருந்து வலம்

2. விழாவறை காறத குைிப்பிடும் விழா (6)

5. ரி என்பதற்கான எதிர்ச்ச ால் தரும்

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எழுத்துகள் இடம் மாைியுள்ளது (3)

7. சபாங்கல் விழாறவசயாட்டி நடத்தப்படும்

ிறுவர்களுக்கான தபாட்டிகளில் ஒன்று (7)

10. ஊழ் என்பதற்குத் தற்காலப் பயன்பாட்டில் உள்ள ச ால் (2)

13. மா + அடி - இதன் புணர்ந்த வடிவம் (3)

19. சகாள்ளுதல் என்பதன் முதல்நிறல

திரிந்த ச ால் (2)

வலமிருந்து இடம்

9. தூய்றமயற்ை குருதிறய எடுத்துச் ச ல்லும் இரத்தக் குழாய் (2)

1

2 3 4

5 6

7 8

9 10

11 12 13 14

15 16

17 18 19

11. ஆராய்ச் ி என்பதன் ச ாற் சுருக்கம் (3)

12. மணிதமகறல காப்பியத்தின் ஆ ிரியர் (5)

18. தனி + ஆள் -த ர்த்து எழுதுக. (4)

தமலிருந்து கீழ்

1. தமிழர்களின் வரீ விறளயாட்டு (7)

2. இவள் + ஐ – த ர ் ந்தால் கிறடப்ப து (3)

3. ம ர த் தி ல் க ்ா ய்க ள்........ஆகக் காய்த்திருந்தன (4)

5. உரிச்ச ா ற்களுள் ஒன்று (2)

6. .............. ிைந ் தது (2)

8. தநரத்றதக் குைிப்பிடும் வானியல் ச ால்(2)

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12. அகழாய்வில் கிறடத்த சகாள்க லன்களுள் ஒருவறக (4)

15. காய் பழுத்தால் .........(2)

கீழிருந்து தமல்

14. ஒருவர் பற்ைி ஒருவர் பிைரிடம் இறத றவக்கக் கூடாது (3)

17. யா முதல் வரும் வினாப்சப யர்(2)

18. தகவிலர் என்பதற் கு எதிர்ச்ச ால்லாகத்

திருவள்ளுவர் குைிப்பிடுவது

vi. உறரப்பத்திறயப் படித்து வினாக்களுக்கு விறடயளி:

பல்லவர் காலத்தில் சுறதயினாலும்,கருங்கற்கலினாலும் ிற்பங்கள் அறமக்கப்பட்டன . தகாவில் தூண்கள் ிற்பங்களால் அழகு சபற்ைன. தூண்களில்யாளி, ிங்கம், தாமறர மலர், நுட்பமான தவறலப்பாடுகள் நிறைந்த வட்டங்கள் தபான்ைறவ சபாைிக்கப்பட்டன. பல்லவர் காலத்தில் அறமக்கப்பட்ட தகாவில்களின்கட்டடங்கள், கற்றூண்கள், சுற்றுச்சுவர்கள்,நுறழவு வாயில்கள் எனஅறனத்து இடங்களிலும் ிற்பங்கள் மிளிர்வறதக் காணமுடியும்..

1. பல்லவர் காலத்தில் எவற்ைால் ிற்பங்கள் அறமக்கப்பட்டன?

2. எறவ ிற்பங்களால் அழகு சபற்ைன?

3. ிற்பங்கள் எங்சகங்கு மிளிர்வறதக் காணமுடியும்?

தன் விபரப் படிவத்றத நிரப்புக.

1. மாணவ / மாணவியின் சபயர் _

2. பாலினம் _

3. பிைந்த தததி _

4. தத ிய இனம் _

5. சபற்தைார் / பாதுகாவலர் சபயர் _

6. வடீ்டு முகவரி _

7. அறலதப ி எண் _

8. பயின்ை சமாழிகள் தட்டச்சு

9. தாய் சமாழி _

10 தட்டச்சு _

11. கணினி _

தமற்கண்ட விவரங்கள் அறனத்தும் உண்றமசயன உறுதி கூறுகிதைன்.தங்கள் நிறுவனத்தில் ___________ பணியிறனத் தந்தாள் ஏன் பணியிறனச் ிைப்பாகவும் உண்றமயாகவும் ச ய்தவன் என உறுதியளிக்கிதைன். இப்படிக்கு,

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உண்றமயுள்ள

vii.கறலச்ச ால் அைிதவாம் ( படித்து வரவும்)

உருபன் - Morpheme

ஒலியன் - Phoneme

ஒப்பிலக்கணம் - Comparative Grammar

தபரகராதி – Lexicon

குமிழிக் கல் - Conical Stone

நீர் தமலாண்றம - Water Management

பா னத் சதா ழில்நுட்பம் - Irrigation Technology

சவப்ப மண்டலம் - Tropical Zone

அகழாய்வு - Excavation

கல்சவட்டியல் - Epigraphy

நடுகல் - Hero Stone

பண்பாட்டுக் குைியீடு - Cultural Symbol

புறடப்புச் ிற்பம் - Embossed sculpture

சபாைிப்பு - Inscription

viii. I ) வரதவற்பு மடல் எழுதுக.

சுற்றுச் சூழறலப் தபணிக்கா க்கும் பள்ளிகளின் வரிற யில் மாவட்டத் திதலதய ிைந்ததாக உங்கள் பள்ளி ததர்ந்சதடுக்கப்பட்டுள்ளது. அதறனக் சகாண்டாடும் விழாவில் கலந்துசகாள்ளும் மாவட்டக் கல்வி அலுவலருக்கு வரதவற்பு மடல் ஒன்றை எழுதுக.

ii) மாணவரும் மூகத்சதாண்டும் குைித்துக் கட்டுறர வறரக.

iii) சுற்றுலா ச ல்ல தவண்டி தந்றதக்குக் கடிதம் வறரக.

ix. மனப்பாடம் ச ய்க - திருக்குைள்

1) மிகுதியான் மிக்கறவ ச ய்தாறரத் தாம்தம்

தகுதியான் சவன்று விடல்.*

2) எறனத்தானும் நல்லறவ தகட்க அறனத்தானும்

ஆன்ை சபருறம தரும். *

3) ஓஒதல் தவண்டும் ஒளிமாழ்கும் ச ய்விறன

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ஆஅதும் என்னு மவர்.*

தமிழ் விடு தூது (ச ய்யுள்)

தித்திக்கும் சதள்அமுதாய்த் சதள்அமுதின் தமலான

முத்திக் கனிதயஎன் முத்தமிதழ – புத்திக்குள்

உண்ணப் படும்தததன உன்தனாடு உவந்துஉறரக்கும்

விண்ணப்பம் உண்டு விளம்பக்தகள் – மண்ணில்

குைம்என்றும் பள்ளுஎன்றும் சகாள்வார் சகாடுப்பாய்க்கு

உைவுஎன்று மூன்றுஇனத்தும் உண்தடா – திைம்எல்லாம்

வந்துஎன்றும் ிந்தா மணியாய் இருந்த உறனச்

ிந்துஎன்று ச ால்லிய நாச் ிந்துதம*

புைநானூறு

நீர்இன்று அறமயா யாக்றகக்கு எல்லாம்

உண்டிசகாடுத்ததார் உயிர் சகாடுத்ததாதர

உண்டி முதற்தை உ ணவின் பிண்டம்;

உணசவனப்படுவது நிலத்சதாடு நீதர ;

நீரும் நிலமும் பு ணரிதயார் , ஈண்டு

உடம்பும் உயிரும் பறடத்தி ிதனாதர.

சபரிய புராணம்

காசடல்லா ம் கறழக்க ரும்பு காசவல்லாம் குறழக்க ரும்பு

மாசடல்லாம் கருங்குவறள வயசலல்லாம் சநருங்குவறள

தகாசடல்லாம் மடஅன்னம் குளசமல்லாம் கடல்அன்ன

நாசடல்லாம் நீர்நாடு தறனஒவ்வா நலசமல்லாம்*

x. காட் ிறயக் கண்டு கவினுை எழுது: (காட் ிறயக் குைித்து எட்டு வரிகளில் கவிறத எழுதுக)

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xi. மரபு இறணச் ச ாற்கறளத் சதாடரில் அறமத்து எழுதுக.

1. ம டும் பள்ளமும் 2. நகமும் சதை யும் 3. முைலும் முடிவும்

4. மகளிக்தகயும் மேடிக்தகயும் 5. கண்ணும் கருத்தும்

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Prealgebra Skill Adding and Subtracting Integers Find each sum.

1) 3 + (-7) 2) (-10) + 12

3) (-5) + 8 4) (-4) + 6

5) (-8) + 12 6) 6 + (-11)

7) (-7) + 2 8) (-12) + (-5)

9) (-12) + (-1) 10) (-9) + 11

11) (-4) + (-8) + 11 12) 3 + (-11) + 8

13) (-4) + 6 + (-3) 14) 1 + (-4) + 10

15) (-5) + (-5) + 1 16) 1 + (-3) + 11

17) (-9)+4+7 18) (-12)+4+8

19) 3 + (-10) + 6 20) (-3)+3+ 12

Find each difference.

21) 5 - 8 22) 6 - 5

23) (-2) - (-8) 24) 3 - 8

25) 4 - 3 26) (-6) - 5

27) 5 - 6 28) 1 - 1

29) (-3) - 6 30) 3 - (-2)

31) 5 -3-(-2) 32) 7 - (-6) - 7

33) (-4) - (-8) - 2 34) (-2) - (-1) - (-7)

35) 2 -(-5)-3 36) (-7) - (-7) - 4

37) (-6) - 4 - (-4) 38) (-8) - (-8) - 5

39) (-5) - 6 - (-6) 40) 6 - (-3) - 1

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Squares and Square Roots

TABLE OF SQUARES

Complete the table.

12 = ______ 22 = ______ 32 = ______ 42 = ______ 52 = ______

62 = ______ 72 = ______ 82 = ______ 92 = ______ 102 = _____

112 = _____ 122 = ______ 132 = _____ 142 = _____ 152 = _____

162 = _____ 172 = ______ 182 = _____ 192 = _____ 202 = _____

212 = _____ 222 = _____ 232 = _____ 242 = _____ 252 = _____

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Find the positive and negative root of the following square roots.

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Calculate positive and negative roots of square roots

Practice #1

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Estimate the following square roots to the nearest whole number.

Section 2

Practice #3

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Practice #4

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Basic Practice:

Concept # ________

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Goals:

Simplify Square Roots

Simplify Square Roots with Variables

Practice #1

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Practice #2

Practice #3 Simplify each square root.

Score:

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Student Name: __________________________

Decimal Multiplication Sheet 1

1) 9.8 2) 7.3 3) 0.3

× 7.9 × 4.6 × 7.7

4) 5.7 5) 2.3 6) 1.3

× 5.6 × 1.7 × 6.3

7) 2.7 8) 4.4 9) 3.8

× 7.3 × 4.6 × 4.8

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SKILL 3: PRACTICE SET #1

1) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

SKILL 3: PRACTICE SET #2

1) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

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SKILL 3: PRACTICE SET #3

2) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

***Read the directions carefully to make sure you are listing them in the order that is asked for.***

SKILL 4: PRACTICE SET #1

1) 2)

3) 4)

5) 6)

7) 8)

9) 10)

11) 12)

13) 14)

15)

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SKILL 4: PRACTICE SET #3

2) 1)

3) 4)

5) 6)

7) 8)

9) 10)

11) 12)

SKILL 5: PRACTICE SET #2

1) 2) 3) 4)

5) 6) 7)

8) 9) 10)

11) 12)

SKILL 5: PRACTICE SET #3

1) 2) 3) 4)

5) 6) 7)

8) 9) 10)

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Find the difference. SKILL 6: PRACTICE SET #1

1) 2) 3) 4)

5) 6) 7)

8) 9) 10)

11) 12)

SKILL 6: PRACTICE SET #2

1) 2) 3) 4)

5) 6) 7)

8) 9) 10)

11) 12)

SKILL 6: PRACTICE SET #3

1) 2) 3) 4)

5) 6) 7)

8) 9) 10)

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Multiply.

SKILL 9: PRACTICE SET #1

1) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

13) 14)

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SKILL 9: PRACTICE SET #2

1) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

13) 14)

SKILL 9: PRACTICE SET #3

1) 2) 3)

4) 5) 6) 7)

8) 9) 10) 11)

Multiply.

SKILL 10: PRACTICE SET #1

1) 2) 3)

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4) 5) 6)

7) 8) 9)

10) 11) 12) 0.8 × 0.9

13)

SKILL 10: PRACTICE SET #2

1) 2) 3)

4) 5) 6)

7)

8)

9)

10) 11) 12)

13)

14)

SKILL 10: PRACTICE SET #3

1) 2) 3)

4) 5) 6)

7)

8)

9)

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Multiply.

SKILL 11: PRACTICE SET #1

1) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

13)

SKILL 11: PRACTICE SET #2

1) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

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SKILL 11: PRACTICE SET #3

1) 2) 3)

4) 5) 6)

7) 8) 9)

MULTIPLY DECIMALS USING ANY WAY YOU HAVE LEARNED.

3) 0.7 0.4 4) 0.1 0.2

5) 0.2 4 6) 0.5 0.9

7) 0.25 5 8) 0.3 1.4

9) 0.8 0.39 10) 0.4 7

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Multiply using the rules for powers of 10.

SKILL 13: PRACTICE SET #1 1) 2)

4) 5)

7) 8) 9.4 0.1

10) 0.4 0.1 11) 96.23 0.001

13) 0.697 0.1 14)

SKILL 13: PRACTICE SET #2

0.31 10 1) 82.3 100 2)

4) 724.3 0.001 5) 0.812 1000

7) 3.9 0.1 8) 0.75 10

10) 12 100 11) 214.2 0.001

13) 0.845 100 14) 31.4 0.1

SKILL 13: PRACTICE SET #3

1) 13.2 0.1 2) 16.8 10

4) 19.43 1000 5) 4.2 0.01

7) 0.92 100 8) 0.3 1000

3)

6)

9) 2.4 0.01

12) 137 0.01

3) 8.3 0.1

6) 12.5 0.01

9) 19.34 0.01

12) 4.32 1000

3) 1.5 100

6) 0.5 0.001

9) 7.1 0.01

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Divide.

SKILL 16: PRACTICE SET #1

1) 2) 3)

4) 5) 6)

7) 8) 9)

10) 11) 12)

SKILL 16: PRACTICE SET #2

1) 2.72 2 2) 2.728 8

4) 18.75 3 5) 4.76 7

7) 314.4 6 8) 0.84 2

10) 78.48 9 11) 333.6 4

13) 64.32 12 14) 0.75 25

SKILL 16: PRACTICE SET #3

1) 456.4 7 2) 15.3 3

4) 397.8 6 5) 45.36 5

7) 22 .6 4 8) 0.175 7

10) 662.22 9 11) 3.12 8

13) 132.72 21 14) 0.0648 12

3) 470.7 9

6) 983.6 2

9) 97.80 5

12) 0.192 8

15) 68.8 16

3) 0.513 9

6) 45.73 2

9) 192.9 3

12) 32.48 4

15) 68.85 15

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Variable and Verbal Expressions Date________________ ___

Write each as an algebraic expression.

1) the difference of 10 and 5 2) the quotient of 14 and 7

3) u decreased by 17 4) half of 14

5) x increased by 6 6) the product of x and 7

7) the sum of q and 8 8) 6 squared

9) twice q 10) the product of 8 and 12

11) the quotient of 18 and n 12) n cubed

Write each as a verbal expression.

13) x 14) a + 9

2

15) 19−3 16) 5n

-1- Worksheet by Kuta Software LLC

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17) q2

a 19)

8

21) n − 14

60 23)

5

Evaluate each expression.

25) 5 squared

27) 20 decreased by 17

29) twice 6

31) 9 times 5

33) 7 squared

40 18)

5

20) x + 8

22) 22

24) n ⋅ 6

26) the product of 8 and 10

28) the quotient of 96 and 8

30) 10 less than 17

32) 10 increased by 8

34) the product of 4 and

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Adding/Subtracting Decimals (A)

Calculate each sum or difference.

800.54 + 90.52 = 343.4 + 5.607 =

94.9 − 41.871 = 809.144 − 15.96 =

803.309 − 133.36 = 767.3 − 24.9 =

489.08 −4.2= 921.74 + 2.7 =

384.94 + 17.348 = 260.65 − 40.9 =

67.1 − 1.19 = 35.438 − 17.2 =

686.4 − 199.61 = 6.356 +5.8=

75.715 + 30.5 = 89.88 − 48.8 =

3.7 + 1.5 = 64.32 + 21.63 =

875.75 + 26.64 = 656.86 + 46.37 =

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Find the LCM of the following 1. x³ y² , x y z 2. 3 x² y z , 4 x³ y³ 3. a² b c , b² c a ,c² a b 4. 66 a⁴ b² c³ , 44 a³ b⁴ c² , 24 a² b³ c⁴ 5. a^(m + 1), a^(m + 2) , a^(m + 3) 6. x² y + x y² , x² + x y 7. 3 (a- 1) , 2 (a - 1)² , (a² - 1) 8. 2 x² - 18 y², 5 x² y + 15 x y² , x³ + 27 y³ 9. (x + 4)² ( x - 3)³ , (x - 1) (x + 4) (x - 3)² 10. 10 (9 x² + 6 x y + y²) , 12 (3 x² - 5 x y - 2 y²) , 14 (6 x⁴ + 2 x³)

Find the G.C.D of the following:-

1. 7 x² y z⁴ , 21 x² y⁵ z³ 2. x² y, x³ y , x² y² 3. 25 b c⁴ d³ , 35 b² c⁵ , 45 c³ d 4. 35 x⁵ y³ z⁴ , 49 x² y z³ , 14 x y² z² 5. c² - d² , c (c - d) 6. x⁴ - 27 a³ x , (x - 3a)² 7. m² - 3 m - 18 , m² + 5 m + 6 8. x² + 14 x + 33 , x³ + 10 x² - 11 x 9. x² + 3 x y + 2 y² , x² + 5 x y + 6 y² 10. 2 x² - x - 1 , 4 x² + 8 x + 3 11. x² - x - 2 , x² + x - 6 , 3 x² - 13 x + 14 12. x³ - x² + x - 1 , x² + x - 6 , x⁴ - 1 13. 24 (6 x⁴ - x³ - 2 x²) , 20 (2 x⁶ + 3 x⁵ + x⁴) 14. (a - 1)⁵ (a + 3)² , (a - 2)² (a - 1)³ (a + 3)⁴ 15. x³ - 9 x² + 23 x - 15 , 4 x² - 16 x + 12 16. 3 x³ + 18 x² + 33 x + 18 , 3 x² + 13 x + 10 17. 2 x³ + 2 x² + 2 x + 2 , 6 x³ + 12 x² + 6 x + 12 18. x³ - 3 x² + 4 x - 12 , x⁴ + x³ + 4 x² + 4 x

Solve each of the following system of equations by elimination method. • x + 2 y = 7 , x – 2 y = 1 • 3 x + y = 8 , 5 x + y = 10 • x + y/2 = 4 , x / 3 + 2 y = 5 • 11 x - 7 y = x y , 9 x - 4 y = 6 x y • 3/y + 5/x = 20/x y , 2/x + 5/ y = 15/x y • 8 x – 3 y = 5 x y , 6 x – 5 y = - 2 x y • 13 x+ 11 y = 70 ,11 x + 13 y = 74 • 65 x – 336 y = 97 , 33 x – 65 y = 1 • 15/ x + 2/y = 17 , 1/x + 1/y = 36/5 • 2/x + 2/3y = 1/6,3/x + 2/y = 0

Solve the following system of equations by substitution method. • 5x - 3y - 8 = 0 and 2x - 3y - 5 = 0 • x - 3y - 11 = 0 and 5x + y - 7 = 0 • y = 6x - 11 and 2x + 3y = 7 • 2x - 3y = -1 and y = x - 1 • y = -3x + 5 and 5x - 4y = -3

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• y = 5x - 7 and -3x - 2y = -12 • -4x + y = 6 and -5x - y = 21 • 2x + y = 20 and 6x - 5y = 12 • y = -2 and 4x - 3y = 18 • 2x + 3y = 5 and 3x + 4y = 7

Factorize :- (1) x2 + 6x + 5 (2) x2 + 2x - 35 (3) x2 - 6x - 7 (4) x2 - 18x + 65 (5) x2 + 5 x + 6 (6) x2 - 2x - 15 (7) x2 - 4x + 3 (8) y2 - 21y - 72 (9) x2 + 13x + 30 (10) x2 + 22x + 21 (11) x2 + 3x - 28 (12) x2 - x - 30 Solve the following system of equations using cross multiplication method (i) 3 x + 4 y = 24, 20 x - 11 y = 47 (ii) 0.5 x + 0.8 y = 0.44 , 0.8 x + 0.6 y = 0.5 (iii) (3x/2) - (5y/3) = -2 , (x/3) + (y/2) = 13/6 (iv) (5/x) - (4/y) = -2 , (2/x) + (3/y) = 13 Formulate the following problems as a pair of equations and find their solutions : 1. One number is greater than thrice the other number by 2. If four times the smaller number exceeds the greater by 5, find the numbers. 2. The ratio of income of two persons is 1 : 2 and the ratio of their expenditure is 3 : 7. If the first person saves $2000 and the second person saves $3000, find the expenditure of each person. 3. Three chairs and two tables cost $700 and five chairs and six tables cost $1100. Find the cost of each chair. 4. A father's age is three times the sum of the age of his two son. After 5 years, his age will be twice the sum of the ages of his two sons. Find the present age of the father. 5. If the numerator of a fraction is increased by 2 and the denominator by 1, it becomes 1. Again if the numerator is decreased by 4 and the denominator by 2, it becomes 1/2. Find the fraction. Add :

3x3 + x2 - 2 and 2x2 + 5x + 5

Fill in the blanks

1. The line has ________________ Points .

2. The plane has length and breadth and does not have ______________

3. Only ________ line passes through two different points in a plane.

4. The two lines intersect each other at a point known as ________ point of both the line

5. The two lines do not intersect each other at any point such lines are called _________ lines

6. A dot gives us an idea of a __________

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7. A wall gives you an idea of ____________

8. Three or more points are _____________ if they all lie on a line

9. Three or more lines are ____________ if they all pass through the same point

10. The line segment has only ____________ end point

11. The line segment is the portion of the ________

12. An angle of measure _________________ is called a right angle.

13. An angle of measure 180° is called a ___________

14. An angle of measures ___________ is called the zero angle

15. An Acute angle is one whose measures is grater than _____ but less than _____

16. An obtuse angle is one whose measures is greater than ________but less than _________

17. A ___________ angle is one whose measure is greater than 180 degree but less than 360°

18. Two angles formed by two intersecting lines having no common arm are said to be

______________ angles

19. Vertical opposite angles are always ____________ to each other

20. If sum of two angles is 90° they are said to be ________________ angled

21. If sum of two angles 180° then they are said to be __________

22. Distance between two intersecting lines is ____________

23. The perpendicular distance between two parallel lines is __________ everywhere.

24. The angles of each pair of corresponding angles are _________

25. The sum of interior angles on the same side of the transversal is ________

26. In a triangle an __________angle equals the sum of two opposite interior opposite angles.

27. The sum of any two sides of a triangle is greater than the ______________ Side

28. A triangle having no two sides equal is called a __________ triangle

29. A triangle having two sides equal is called an ____________ triangle

30. The length of the diameter is __________ the radius of the circle.

31. In the circle the fixed point is called _____________ of the circle and the constant Distance is

called __________ of the circle.

32. Circles with same center are called _______________ circles.

33. If two parts of circle are equal then,each part is called _______________

34. The angles opposite to equal sides of an isosceles triangle are ________

35. The ___________ opposite to equal angles of a triangle are equal

36. If two sides of a triangle are unequal the angle opposite to the ______________ is larger

37. In any triangle the side opposite to the ___________ is larger.

38. The sum of angles in a quadrilateral is _____________

39. The ________________ of a parallelogram divides it into two congruent triangles

40. Parallelograms on the same base and between the same parallels are equal in _________

41. The _____________ of a triangle divides it into two triangles of equal area

42. Chords equidistant from the center of a circular area equal in __________

43. Congruent arcs of a circle subtend equal __________ at the center

True or False type of geometry questions

1. A point has no shape.

2.Two lines in a plane always intersect in a point.

3.Infinitely many lines can be drawn through two distinct points

4.Four points are collinear if any three of them lie on a same line

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5.Through a given point,infinitely many lines can be drawn

6.If the two lines being crossed are parallel lines,then the corresponding angles are equal.

7.Angles in a same segment are not equal

8.The angles in a same segment are not equal

9.Two supplementary angles may not form a linear pair

10.Chord passes through the center of the circle

Level 2 Practice:

Find the positive and negative root of the following square roots.

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Learn these algebraic identities (1) (a + b)² = a² + 2 ab + b²

(2) (a + b)² = (a - b)² + 4 ab (3) (a - b)² = a² - 2 ab + b²

(4) (a - b)² = (a + b)² - 4 ab (5) a² - b² = (a + b) (a - b) (6) (x+a) (x+b) =x² + (a + b) x+a b (7) (a+b)³=a³+3a²b+3ab²+b³

(8) (a+b)³=a³+b³+3ab(a+b) (9) (a-b)³=a³-3a²b+3ab²-b³

(10) (a-b)³=a³-b³-3ab(a-b) (11) a³+b³ = (a+b)(a²-ab+b²)

(12) a³+b³=(a+b)³-3 ab(a + b) (13) a³-b³= (a-b)(a²+ab+ b²)

(14) a³-b³=(a-b)³ +3ab(a-b)

(23) (a + b + c)³ = a³ + b³ + c³ + 3a²b + 3a²c + 3ab² + 3b²c + 3ac² + 3bc² + 6abc

(24) (a + b - c)³ = a³ + b³ - c³ + 3a²b - 3a²c + 3ab² - 3b²c + 3ac² + 3bc² - 6abc

(25) (a - b + c)³ = a³ - b³ + c³ - 3a²b + 3a²c + 3ab² + 3b²c + 3ac² - 3bc² - 6abc

(26) (a - b - c)³ = a³ - b³ - c³ - 3a²b - 3a²c + 3ab² - 3b²c + 3ac² - 3bc² + 6abc

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Basic Practice:

Concept 14 Square Roots

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Goals: Concept # ________

Simplify Square Roots

Simplify Square Roots with Variables

Practice #1

Concept 14 Square Roots

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Practice #2

Practice #3 Simplify each square root.

Concept 14 Square Roots

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HOLIDAY HOMEWORK

CLASS: 9

SUBJECT: Physics and Chemistry

WORKSHEET-1

I. Choose the correct answer.

1. Rulers, measuring tapes and metre scales are used to measure

a. mass b. weight c. time d. length

2. Which among the following is not a device to measure mass?

a. Spring balance b. Beam balance c. Physical balance d. Digital balance

3. The separation of denser particles from lighter particles done by rotation at high speed is called

_____________

a) Filtration b) sedimentation c) decantation d) centrifugation

4. When we mix a drop of ink in water we get a ________________

a) Heterogeneous Mixture b) Compound c) Homogeneous Mixture d) Suspension

5. ________________ is essential to perform separation by solvent extraction method.

a) Separating funnel b) filter paper b) centrifuge machine d) sieve

6. __________ has the same properties throughout the sample

a) Pure substance b) Mixture c) Colloid d) Suspension

7. If Dobereiner is related with ‘law of triads’, then Newlands is related with

a) Modern periodic law b) Hund’s rule c) Law of octaves d) Pauli’s Exclusion principle

8. Modern periodic law states that the physical and chemical properties of elements are the periodic

functions of their

a) a) atomic numbers b) atomic masses c) similarities d) anomalies

9. Elements in the modern periodic table are arranged in groups and periods

a) 7, 18 b) 18, 7 c) 17, 8 d) 8, 17

10. The area under velocity – time graph represents the

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a) velocity of the moving object. b) displacement covered by the moving object. c) speed of the

moving object. d) acceleration of the moving object.

WORKSHEET-2

Fill in the blanks.

1. Thickness of a cricket ball is measured by ________

2. Radius of a thin wire is measured by ___________

3. A physical balance measures small differences in mass up to ______

4.Speed is a __________ quantity whereas velocity is a _________ quantity.

5. The slope of the distance – time graph at any point gives __________

6. A ________________ mixture has no distinguishable boundary between its components

7. An example of a substance that sublimes is ________________

8. Alcohol can be separated from water by _________________

9. In petroleum refining, the method of separation used is ______________

10. Chromatography is based on the principle of ______________

WORKSHEET-3

Answer the following.

1. Define measurement.

2. Define least count of any device.

3. What do you know about pitch of screw gauge?

4. Differentiate mass and weight

5. How will you measure the least count of vernier caliper?

6. Define velocity.

7. Distinguish distance and displacement.

8 . What do you mean by uniform motion?

9. Compare speed and velocity.

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10. What do you understand about negative acceleration?

11. Is the uniform circular motion accelerated? Give reasons for your answer.

12. What is meant by uniform circular motion? Give two examples of uniform circular motion

13. On what factors the pressure exerted by the liquid depends on?

14. Why does a helium balloon float in air?

15. Why it is easy to swim in river water than in sea water?

16. What is meant by atmospheric pressure?

17. State Pascal’s law.

18. Define Sublimation.

19. A few drops of ‘Dettol’ when added to water the mixture turns turbid. Why?

20. Name an element which has the same number of electrons in its fi rst and second shell.

21. Write the electronic confi guration of K and Cl

22. Draw the structure of oxygen and sulphur atoms.

23.What are nucleons? How many nucleons are present in Phosphorous? Draw its structure.

24. State modern periodic law.

25. What are groups and periods in the modern periodic table?

26. What are the limitations of Mendeleev's periodic table?

27. State any five features of modern periodic table.

28. How do atoms attain Noble gas electronic configuration?

29. NaCl is insoluble in carbon tetrachloride but soluble in water. Give reason.

30. Correct the wrong statements.

a. Ionic compounds dissolve in non polar solvents.

b. Covalent compounds conduct electricity in molten or solution state.

WORKSHEET-4

Answer briefly.

1. Write the rules that are followed in writing the symbols of units in SI system.

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2. Explain a method to find the thickness of a hollow tea cup.

3. With an appropriate illustration prove that the force acting on a smaller area exerts a greater

pressure.

4. Describe the construction and working of mercury barometer.

5. How does an object’s density determine whether the object will sink or float in water?

6.Explain the postulates of Bohr’s atomic model.

7.Write the differences between elements and compounds and give an example for each.

8. Explain Tyndall effect and Brownian movement with suitable diagram.

9. How is a mixture of common salt, oil and water separated? You can use a combination of

differentmethods

10. Explain Octet rule with an example.

WORKSHEET-5

Activity 1

Take a large stone and a small eraser. Stand on the top of a table and drop them

simultaneously from the same height. What do you observe? Now, take a small eraser and a

sheet of paper. Drop them simultaneously from the same height. What do you observe? This

time, take two sheets of paper having same mass and crumple one of the sheets into a ball.

Now, drop the sheet and the ball from the same height. What do you observe?

Activity 2

Draw the structures of the isotopes of oxygen O16 and O18

Atomic number of oxygen = 8

Activity 3

Make a model of sodium and carbon atom

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WORKSHEET-6

Question paper

I. Choose the correct answer. 5*1=5

1. Distance between Chennai and Kanyakumari can be found in

a. Kilometres b. Metres c. Centimetres d. Millimetres

2. Which among the following is not a device to measure mass?

a. Spring balance b. Beam balance c. Physical balance d.Digital balance

3. Slope of the velocity - time graph gives

a) speed b) displacement c) distance d) acceleration

4. Filtration method is effective in separating ________________mixture

a) Solid-solid b) solid-liquid c) liquid-liquid d) liquid-gas

5. The correct electronic configuration of potassium is

a) 2,8,9 b) 2,8,1 c) 2,8,8,1 d) 2,8,8,3

II. Answer any 5 questions 5*2=10

6. Define least count of any device

7. Distinguish distance and displacement?

8. What is meant by uniform circular motion? Give two

examples of uniform circular motion.

9. Compare the charge and mass of protons and electrons

10. List the uses of isotopes?

11. Draw the structure of oxygen and sulphur atoms

III. Answer in detail 2*5=10

12. Derive the three equations of motion by graphical method.

13.Explain the postulates of Bohr’s atomic_model

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SUSHIL HARI INTERNATIONAL RESIDENTIAL SCHOOL, KELAMBAKKAM

STD: VIII to IX

SOCIAL SCIENCE

1. Prepare a chart on the kinds of sources of Modern India

2. Defeat of the Indian rulers at the hands of the British

3. Point out the influence which shaped Gandhiji’s ideas on ahimsa and satyagraha

4. Make a report on Palayakkarars

5. What was the part of Velu nachiyar in the palayakkarar revolt

6. Map work – Mark the areas of the black soil on the outline map of India

7. Collect the soil samples of different types & display them with their names

8. Observe and record the whether condition of your place in the following table

Date

Place & Time

Temperature

Barometric Pressure

Precipitation type and amount

Wind Direction

Wind Speed

Source of Information

9. Fresh water is less on the earth – Give Reason

10. Define Hydrological cycle

11. Discuss the powers and functions of Chief Minister

12. Discuss the powers and functions of the legislative assembly

13. List out the powers and functions of High court

14. List out the names of Council of Minsiters of Tamilnadu

15. Name any 3 qualities of a good citizen

16. On What grounds that, the citizenship of a person is cancelled

17. Collect the pictures of New and Old Currencies in India

18. What are the difference between Savings and Investment

19. What are the effects of black money on economy

20. Make a survey of COVID-19