CBSE Class 4 Worksheet for EVS Chapter Human Body and their Needs Questions with Answers

CBSE Class 4 EVS Chapter Human Body and their Needs Worksheet Questions and Answers

Q.1 Dogs and cats have sharp pointed

(A) canines

(B) Molars

(C) Both

(D) none of these

Answer:

A

Q.2 Match the following:

(A) (A - III), (B - I), (C - IV), (D - II)

(B) (A - IV), (B - III), (C - II), (D - I)

(C) (A - II), (B - I), (C - IV), (D - III)

(D) (A - II), (B - IV), (C - I), (D - III)

Answer:

d

Q.3 Number of milk teeth in humans is:

(A) 22

(B) 20

(C) 24

(D) 32

B

Q4. There are ____ permanent teeth in our mouth.

(A) 25

(B) 32

(C) 34

(D) 30

Answer:

B

Q5. Number of teeth in each jaw in humans:

(A) 18

(B) 14

(C) 16

(D) 20

Answer:

C

Q6. Which one statement among the following is not correct about incisors?

(A) There are 4 incisors in each jaw in humans.

(B) They are front teeth.

(C) They are cutting and biting teeth.

(D) They are crushing teeth.

Answer:

D

Q7. _______ are also known as teeth for tearing food.

(A) Canines

(B) Incisors

(C) Premolars

(D) Molars

Answer:

A

Q8. Molars are used for:

(A) Cutting and biting food.

(B) Tearing food.

(C) Cracking food.

(D) Grinding food.

Answer:

D

Q9. In humans there are ____ molars in each jaw.

(A) Six

(B) Two

(C) Four

(D) Three

Answer:

A

Q.10 These teeth are meant for cracking food.

(A) Incisors

(B) Premolars

(C) Canines

(D) Both (A) and (C)

Answer:

B

Q.11 Which one among the following is not a part of a tooth?

(A) Enamel

(B) Root

(C) Decay

(D) Neck

Answer:

C

Q.12 Hardest substance of human body is:

(A) Thigh bone

(B) Elbow bone

(C) Enamel

(D) Rib

Answer:

C

Q.13 The soft part of the tooth which has blood vessels is:

(A) Dentine

(B) Pulp

(C) Enamel

(D) Root

Answer:

B

Q.14 Which one among the following is a cause of tooth decay?

(A) Regular brushing.

(B) Eating food that are high in sugar.

(C) Flossing

(D) Visiting a dentist after every 6 months.

Answer:

B

Q.15 A sticky coating formed by bacteria on teeth is:

(A) Decay

(B) Enamel

(C) Plaque

(D) Saliva

Answer:

C

Q.16 Which is the most important mineral for healthy teeth?

(A) Iron

(B) Potassium

(C) Sodium

(D) Calcium

Answer:

D

Q.17 The vitamin which plays an important role in maintaining healthy teeth and gums is:

(A) Vitamin C

(B) Vitamin K

(C) Vitamin B

(D) Vitamin E

Answer:

A

Q.18 The outermost layer of teeth is:

(A) Dentine

(B) Enamel

(C) Pulp

(D) Root

Answer:

B

Q.19____ are disease causing microbes.

(A) Antibiotic

(B) Malaria

(C) Dysentery

(D) Germs

Answer:

D

Q.20 We should eat _____ diet.

(A) Unhealthy

(B) Improper

(C) Balanced

(D) All the above

Answer:

C

Q.21 Typhoid is caused by:

(A) Virus

(B) Bacteria

(C) Fungi

(D) Protozoa

Answer:

B

Q.22 Which one of the following is not a disease?

(A) Tuberculosis

(B) Typhoid

(C) Protozoa

(D) Malaria

Answer:

C

Q.23 Match the following:

(A) (A- III), (B - II), (C - IV), (D - I)

(B) (A - III), (B- IV), (C - I), (D - II)

(C) (A - IV), (B - III), (C - II), (D - I)

(D) (A - II), (B - I), (C - IV), (D - III)

Answer:

B

Q.24 ____ is caused by virus.

(A) Malaria

(B) Ringworm

(C) Dengue

(D) Typhoid

Answer:

C

Q.26 This microbe helps in changing milk into curd.

(A) Virus

(B) Bacteria

(C) Fungi

(D) Protozoa

Answer:

B

Q.27 The microorganism which is used for making bread.

(A) Protozoa

(B) Fungi

(C) Bacteria

(D) Virus

Answer:

B

Q.28 Which one of the following is not a type of teeth?

(A) Canine

(B) Molar

(C) Incisor

(D) Plaque

Answer:

D

Q.29 Which one of the following statements is not correct about the microbes?

(A) Some microbes are harmful for us.

(B) Microbes can be seen by naked eyes.

(C) Microbes can be found everywhere.

(D) Microbes can grow inside or outside our body.

Answer:

D

Q.30 ____teeth are first set of teeth.

(A) Permanent

(B) Temporary

(C) Both (A) and (B)

(D) Either (A) or (B)

Answer:

B

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