#### Half Yearly Model Question Paper 1

6th Standard

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Science

Time : 02:30:00 Hrs
Total Marks : 100

Part A

20 x 1 = 20
1. The conversion of 7 m into cm gives

(a)

70 cm

(b)

700 cm

(c)

7 cm

(d)

7000 cm

2. While measuring length using a ruler, the position of your eye should be

(a)

Left side of the point.

(b)

Vertically above the point where the measurement is to be taken.

(c)

Right side of the point

(d)

Any where according to one’s convenience.

3. ___________is used to measure the accurate time of the activity.

(a)

Clock

(b)

Watch

(c)

Stop clock

(d)

Measuring

4. Unit of speed is__________

(a)

m

(b)

s

(c)

kg

(d)

m/s

5. Gita rides with her father’s bike to her uncle’s house which is 40 km away from her home. She takes 40 minutes to reach there.
Statement 1: She travels with a speed of 1 km/minute.
Statement 2: She travels with a speed of 1 km/hour.

(a)

Statement 1 alone is correct.

(b)

Statement 2 alone is correct.

(c)

Both statement 1 and 2 are correct.

(d)

Neither statement 1 nor statement 2 is correct.

6. People walking in a crowded street is example of_________motion

(a)

linear

(b)

circular

(c)

rotatory

(d)

zigzag

7. _________ is not made of matter

(a)

gold ring

(b)

iron nail

(c)

light ray

(d)

oil drop

8. Lighter impurities like dust, when mixed with rice or pulses, can be removed by __________

(a)

filtration

(b)

sedimentation

(c)

decantation

(d)

winnowing

9. The space between ____________ particles is the greatest one.

(a)

solid

(b)

liquid

(c)

gas

(d)

cold

10. Organs of absorption

(a)

Root

(b)

Stem

(c)

Leaf

(d)

Flower

11. The habitat of water hyacinth

(a)

Aquatic

(b)

Terrestrial

(c)

Desert

(d)

Mountain

12. The underground part of the main axis of a plant is known as_________.

(a)

shoot

(b)

node

(c)

root

(d)

leaf

13. Which of the following are characteristics of living beings?
(i) Respiration
(ii) Reproduction
(iv) Excretion
Choose the correct sequence

(a)

(i), (ii), and (iv) only

(b)

(i), (ii) only

(c)

(ii) and (iv) only

(d)

(i), (ii), (iii) and (iv)

14. Choose the set that represents only biotic components of a habitat

(a)

Tiger, Deer, Grass, Soil

(b)

Rocks, Soil, Plants, Air

(c)

Sand, Turtle, Crab, Rocks

(d)

Aquatic plant, Fish, Frog, Insects

15. Lizards are walk with four legs and is known as

(a)

Bipedal

(b)

Tripedal

(c)

Monopedal

(d)

16. Scurvy is caused due to the deficiency of______________.

(a)

Vitamin A

(b)

Vitamin B

(c)

Vitamin C

(d)

Vitamin D

17. We should include fruits and vegetables in our diet, because ________________.

(a)

They are the best source of Carbohydrates

(b)

They are the best source of Proteins

(c)

They are rich in minerals and Vitamins

(d)

They have high water content

18. _____________is the highly rich source of protein

(a)

nuts

(b)

grams

(c)

chicken

(d)

soya bean

19. ___________is an a-cellular agent that replicates only inside the cells ofthe other living organism.

(a)

Bacteria

(b)

Protozoa

(c)

Fungi

(d)

Virus

20. When was the first computer introduced?

(a)

1980

(b)

1947

(c)

1946

(d)

1985

21. Part B

10 x 2 = 20
22. Complete the web chart.

23. Classify the plants on the basis of their habitat.

24. What are the body parts of a snake?

25. Write any two viral diseases

26. Write a short note on Data.

27. What is thermal expansion?

28. Identify the conductor from the following figures.

29. What is a solution?

30. Define the term "Trachea".

31. Give the main difference between a pure substance and an impure substance.

32. Part C

6 x 5 = 30
33. Fill up the following chart.

 Property Definition Basic unit Instrument used for measuring Length Mass Volume Time
34. Fill with examples:

35. Study the given concept map. Connect them correcting by drawing arrow marks. Complete the map by filling in the blanks.

36. Rahul wants to make an electric circuit. He has a bulb, two wires, a safety pin and a piece of copper. He does not have any electric cell or battery. Suddenly he gets some idea. He uses a lemon instead of a battery and makes a circuit. Will the bulb glow?

37. When a candle is lit the following changes are observed.
a. Wax melts.
b. Candle keeps burning.
c. The size of the candle decreases.
d. The molten wax solidifies

38. Why is the heart divided into two halves by a thick muscular wall?

39. Part D

10 x 3 = 30
40. Look at the picture given below and explain the method of separation illustrated.

41. Mention the feature that help a bird to fly is the air?

42. Distinguish between heat and temperature.

43. Can the cell used in the clock gives us an electric shock? Justify your answer

44. What type of changes is associated with germination of a seed? Explain

45. Why do traffic assistants wear a mask on duty?

46. Identify any four parts of the Plant cell.

47. Write about the contribution of Robert Hooke in cell biology.

48. Differentiate between the voluntary muscles and involuntary muscles.

49. A vehicle covers a distance of 400km in 5 hours. Calculate its average speed.