STD – IVSPRINGDALE PRIMARY SCHOOL

SCIENCE(ANSWERS OF REVISION TEST-2)

A. Answer the following:- 1. Explain in brief the three parts of a tooth with a labeled diagram.

A1. The three parts of a tooth are:-(i) Enamel- It is the hardest and outermost part of the tooth.(ii) Dentine- The hard part of the tooth that lies below the enamel.(iii) Pulp- The soft part of the tooth that lies inside the dentine.

2. Write four tips to take care of the teeth.A2. (i) Brush your teeth twice a day.

(ii) Massage your gums with salt daily.(iii) Rinse your mouth every time you eat.(iv) Avoid eating too many chocolates, sweets or aerated drinks.

B. Answer in one line sentence:- 1. Name the four types of permanent teeth.

A1. The four types of permanent teeth are:-i. Incisors

ii. Caninesiii. Premolarsiv. Molars

2. What are first teeth of a baby called?A2. The first teeth of a baby are called temporary teeth or milk teeth.

3. What is plaque?A3. The yellow sticky substance formed on the teeth due to improper and

irregular cleaning is called plaque.

C. Fill in the blanks:- 1. The doctor who treats diseases related to teeth and gum is called dentist.2. Harmful germs that act on the food particles stuck between the teeth are

calledbacteria.3. If teeth are not brushed properly and regularly, cavitiescan develop.

D. Complete the following chart: (one has been done for you)

TEETH FUNCTION NUMBER1.Incisors Used for biting or cutting 82.Canines Used for tearing food 43.Premolars Used for crushing food into smaller

particles.8

4.Molars Used for grinding and chewing food 12

E. Label the parts of tooth on the picture given below:-

[N.B.-Do it in your exercise book.]

Enamel

Dentine

Pulp

Crown

Root

STD – IVSPRINGDALE PRIMARY SCHOOL

GEOGRAPHY(MAP POINTING: CONTINENTS & OCEANS)

REVISIONUse only pencil for map pointing.

1. __________________2. ___________________3. ___________________4. ___________________5. ___________________6. ___________________

7. ___________________8. ___________________9. ___________________10. ___________________11. ___________________12. ___________________

STD – IVSPRINGDALE PRIMARY SCHOOL

GEOGRAPHY(REVISION TEST-2)

E. Define the following:- 1. Continents2. Mountain range3. Delta4. Island5. Isthmus6. Strait7. Coast8. Lake

F. Answer in one word:- 1. World’s highest mountain range.- ________________2. Highest peak in the world.-_______________3. Write one example of saline lake.- __________________4. Deepest ocean in the world.- _____________________5. Largest desert in the world.- ____________________6. Land surrounded by water is called.- ________________7. Narrow stretch of land connecting two larger land masses.- ________8. Place where the land and the sea meet.- ________________9. Low plain found at the mouth of a river where it meets the sea.-

______________10. Deserts having hills of sand is known as- _______________________

G. Differentiate between(with diagrams):- Mountain and Hills

H. Draw, colour and label:- a) Deltab) Peninsula

c) Straitd) Lakee) coast

[N.B.-Do it in your exercise book.]

STD- IVSPRINGDALE PRIMARY SCHOOL

HISTORY(HARVEST FESTIVALS)

PART - 2

1. How is Pongal celebrated?A1. The harvest festival of Tamil Nadu is known as Pongal. It is celebrated in

January. People draw floral designs in front of their houses known as Kolam. A special dish called Pongal rice is made with rice and sugar.

2. What is the harvest festival of West Bengal?A2. Nabanno is the harvest festival of West Bengal. It falls in November.

It is celebrated with food, dance and music.

3. Why are the cattle worshipped in most of the harvest festivals?A3. The cattle are worshipped as they play an important role in agriculture.

4. What did Guru Gobind Singh do on Baisakhi?A4. On the day of Baisakhi, Guru Gobind Singh organized the Sikhs into Khalsa.

STD—IV

ENGLISH LITERATURE

REVISION WORKSHEET ( ANSWER KEY)

A.1) The name of the house where the three children lived was the ' Three Chimneys '.A.2) The house was on top of a hill.A.3) The station master raised his arm and seized Peter’s collar because he saw him putting coal in his bag A.4) Bobbie and Phyllis came out of the shadow of a truck.A.5) Follow your classwork exercise book.B. Complete the sentences:-1). In June came three wet days and it became very cold.

2). This ritual was followed for almost a week.3). On this note they parted and the children went back home.

C. 1) Peter said these words to the station master . 2) Phyllis said these words to the station master.

D. Make sentences:-( on your own )

STD—IV

SPRINGDALE PRIMARY SCHOOL

ENGLISH LITERATURE

Hello, children!

This is a new lesson. First, you have to read the lesson thoroughly. While reading, underline the difficult words and learn the spellings slowly. Then, learn the meanings given in your book.

In your classwork exercise book, leave one page for drawing. You don’t have to draw now. Wait for my instruction. Next page, write down the name of the lesson and copy the meanings and opposites given below.

THE LEGEND OF PROMETHEUS

Meanings:-

1. throne- a special chair or seat used by a king.

2. begged- requested3. mighty- powerful, strong4. ore- rock, earth etc. from which metal can

be obtained5. plough- to dig and turn over the soil with a

plough6. reap- to cut and gather a crop7. repent- to feel regret or sorrow about

something

OPPOSITES:-

1. wise- foolish2. mighty – feeble, weak,powerless3. strength- weakness4. precious – worthless,valueless

STD –IV

ENGLISH LANGUAGE

ASSESSMENT—2

Change into Negative & Interrogative

1. Ruby fell down.

2. Molly and Poppy go to school together.

3. Tony and Pinky had Chinese food yesterday.

4. I write a letter to my father every week.

5. Runa dances well.

6. You play tennis

7. Birds build nests on trees.

8. Luna played well.

9. My brother broke the flower pot.

10. I sat with my granny in the garden.

ANSWER KEY.

1. Did Ruby fall down ?

Ruby did not fall down.

2. Molly and Poppy do not go to school together.

Do Molly and poppy go to school together?

3. Tony and Pinky did not have Chinese food today.

Did Tony and Pinky have Chinese food today?

4. I do not write a letter to my father every week.

Do I write a letter to my father every week?

5. Runa does not dance well.

Does Runa dance well?

6. You do not play tennis.

Do you play tennis?

7. Birds do not build nests on trees.

Do birds build nests on trees.

8. Luna did not play well.

Did not play well.

9. My brother did not break the flower.

Did my brother break the flower pot?

10. I did not sit with my granny in the garden.

Did I sit with my granny in the kitchen?