6th Science - Term 1 Exam 2024 - Original Question Paper | Chengalpattu District

COMMON FIRST TERM SUMMATIVE EXAMINATION - 2024

Standard - VI

SCIENCE

Time: 2.00 hrs | Marks: 60

I Choose the correct answer. (5x1=5)

1. The height of a tree can be measured by ______.

• a) metre scale
• b) metre rod
• c) plastic ruler
• d) measuring tape

Answer: d) measuring tape

2. Unit of Speed is ______.

• a) m
• b) S
• c) Kg
• d) m/s

Answer: d) m/s

3. Seeds from watermelon can be removed by ______.

• a) hand - picking
• b) Filtration
• c) magnetic separation
• d) decantation

Answer: a) hand - picking

4. Organ of absorption is ______.

• a) root
• b) Stem
• c) leaf
• d) flower

Answer: a) root

5. The study of living beings (or) organisms is called ______.

• a) Psychology
• b) Biology
• c) Zoology
• d) Botany

Answer: b) Biology

II Fill in the blanks (5x1=5)

6. SI unit of length is metre.

7. Gravitational force is a non-contact force.

8. Matter is made up of atoms.

9. Primary organs of photosynthesis are leaves.

10. Amoeba moves with the help of pseudopodia.

III State True or False. If False, Correct the statement (5x1=5)

11. Ten millimetre makes one centimetre.

Answer: True.

12. Robots will replace human in future.

Answer: False.
Correct statement: Robots will assist humans and perform certain tasks, but they are not expected to completely replace humans in all fields.

13. Air is not compressible.

Answer: False.
Correct statement: Air is highly compressible.

14. Mountain is an example for fresh water habitat.

Answer: False.
Correct statement: Rivers, lakes, and ponds are examples of freshwater habitats. Mountains are a terrestrial habitat.

15. Paramecium is a multicellular organism.

Answer: False.
Correct statement: Paramecium is a unicellular organism.

IV Match the following (5x1=5)

16. Mountain	-	Himalayas
17. Desert	-	Dry place
18. Stem	-	Branches
19. Photosynthesis	-	Leaves
20. Fibrous root	-	Monocot

V Complete the analogy (5x1=5)

21. Sugar : Beam balance :: Lime juice : Measuring jar

22. Milk : Volume :: Vegetables : Mass

23. Distance : metre :: Speed : m/s

24. Solid : Rigidity :: Gas : Compressibility

25. Iodine : Goiter :: Iron : Anaemia

VI Give short answer (Any 10 only) (10x2=20)

26. Define measurement.

Measurement is the comparison of an unknown quantity with some known standard quantity.

27. Define mass.

Mass is the amount of matter contained in an object. Its SI unit is kilogram (kg).

28. Differentiate between rotational and curvilinear motion.

Rotational Motion: The motion of a body about its own fixed axis. Example: A spinning top.
Curvilinear Motion: The motion of a body along a curved path. Example: A stone thrown in the air.

29. Why do we separate mixtures?

We separate mixtures to:
1. Remove undesirable or harmful components.
2. Obtain useful components.
3. Obtain a substance in its purest form.

30. Define the term matter.

Anything that occupies space and has mass is called matter.

31. Classify the plants on the basis of their habitats.

Plants are classified based on their habitats as:
1. Aquatic Plants (Hydrophytes): Plants that live in water (e.g., Lotus).
2. Terrestrial Plants: Plants that live on land (e.g., Mango, Cactus).

32. List out the plants present in your school garden.

Some common plants found in a school garden are Rose, Hibiscus, Jasmine, Neem tree, and Mango tree. (This answer is subjective).

33. How do birds catch their prey?

Birds use their beaks and claws (talons) to catch their prey. Different beak shapes and strong talons are adapted for different types of food and prey.

34. Name the locomotory organ of Amoeba.

The locomotory organ of Amoeba is pseudopodia (false feet).

35. Define balanced diet.

A diet that contains all essential nutrients like carbohydrates, proteins, fats, vitamins, and minerals in adequate proportions for the healthy functioning of the body is called a balanced diet.

36. Mention any two viral diseases.

Two viral diseases are:
1. Common Cold
2. Influenza (Flu)

37. What is a Computer?

A computer is an electronic device that accepts data as input, processes it according to a set of instructions, and provides the result as output.

VII Answer in detail (Any 3 only) (5x3=15)

38. What is motion? Classify different types of motion with examples.

Motion is the change in the position of an object with respect to time.
Types of motion:

• Linear motion: Motion along a straight line. (e.g., A car moving on a straight road).
• Circular motion: Motion along a circular path. (e.g., The Earth revolving around the Sun).
• Rotational motion: Motion of a body about a fixed axis. (e.g., A spinning fan).
• Oscillatory motion: Repetitive to and fro motion about a mean position. (e.g., A swinging pendulum).
• Random motion: Irregular motion without a fixed path. (e.g., A flying butterfly).

39. Distinguish the properties of solid, Liquid and gas. Draw a suitable diagram.

Property	Solid	Liquid	Gas
Shape	Definite Shape	No Definite Shape	No Definite Shape
Volume	Definite Volume	Definite Volume	No Definite Volume
Compressibility	Negligible	Very Low	High
Intermolecular Force	Very strong	Less strong	Very weak

(A diagram showing the arrangement of particles in solid, liquid, and gas should be drawn here.)

40. Make a list of the functions of root and stem.

Functions of Root:

• It fixes the plant firmly to the soil.
• It absorbs water and minerals from the soil.
• Some roots store food (e.g., Carrot, Radish).

Functions of Stem:

• It supports the branches, leaves, flowers, and fruits.
• It transports water and minerals from the roots to the upper parts of the plant.
• It transports food from the leaves to other parts of the plant.
• Some stems store food (e.g., Potato, Ginger).

41. Describe the various features which help camel dwell well in the desert.

Features that help a camel survive in the desert:

• Hump: Stores fat which provides energy and water when food is scarce.
• Long Eyelashes: Protect the eyes from blowing sand.
• Closable Nostrils: Prevent sand from entering the nose.
• Wide, Padded Feet: Help to walk on sand without sinking.
• Thick Lips: Allow it to eat thorny desert plants without injury.
• Water Conservation: It can drink a large amount of water at once and excretes very less water as concentrated urine.

42. Tabulate the vitamins and their corresponding deficiency diseases.

Vitamin	Deficiency Disease
Vitamin A	Night Blindness
Vitamin B1	Beriberi
Vitamin C	Scurvy
Vitamin D	Rickets
Vitamin E	Sterility / Infertility
Vitamin K	Haemorrhage (Failure of blood clotting)

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