6th Science - Term 1 Exam 2024 - Original Question Paper With Answer Key | Chennai District

6th Science - First Term Summative Assessment (SA) 2024-25 - Solved Paper

Class: 6

Subject: Science

Exam: First Term - Summative Assessment (SA) - 2024-25

Time Allowed: 2.00 Hours

Max. Marks: 60

PART - I

I. Choose the correct answer. (10x1=10)

1. Quantity that can be measured is called _______.

• a) Physical quantity
• b) Measurement
• c) Unit
• d) Motion

2. Conversion of 7 m into cm gives _______.

• a) 70 cm
• b) 7 cm
• c) 700 cm
• d) 7000 cm

3. Unit of speed is _______.

• a) m
• b) s
• c) kg
• d) m/s

4. _______ is essential to perform winnowing activity.

• a) Rain
• b) Soil
• c) Water
• d) Air

5. _______ is not made of Matter.

• a) Gold Ring
• b) Iron Nail
• c) Light Ray
• d) Oil Drop

6. Organ of absorption is _______.

• a) Root
• b) Stem
• c) Leaf
• d) Flower

7. Lizards breath through their _______.

• a) Skin
• b) Gills
• c) Lungs
• d) Trachea

8. Calcium is an example for _______.

• a) Carbohydrate
• b) Fat
• c) Protein
• d) Minerals

9. Scurvy is caused due to the deficiency of _______.

• a) Vitamin A
• b) Vitamin B
• c) Vitamin C
• d) Vitamin D

10. Who is the Father of Computer?

• a) Martin Luther King
• b) Graham Bell
• c) Charlie Chaplin
• d) Charles Babbage

II. Fill in the blanks: (5x1=5)

11. SI unit of Length is Metre.

12. Gravitational force is a Non-contact Force.

13. Matter is made up of atoms.

14. Primary organs of Photosynthesis are Leaves.

15. Camel stores fat in its Humps.

III. Match the following. (5x1=5)

Question	Correct Answer
16. SI Unit of time	Second
17. Mountain	Himalayas
18. Fibrous root	Monocot
19. Bends readily	Plastic Wire
20. Desert	Dry place

PART - II

IV. Answer any ten of the following questions. (10x2=20)

21. Define Measurement.

Ans: Comparison of an unknown quantity with a known standard quantity.

22. Define Force.

Ans: A push or pull on an object.

23. Why do We Separate Mixture?

Ans: We separate mixtures (i) to remove harmful substances and (ii) to get useful components.

24. Define - Sedimentation.

Ans: The process of settling down of heavy, insoluble particles in a mixture.

25. Complete the Analogy.

i) Sugar : Beam balance :: Lime juice : Measuring Jar

ii) Milk : Volume :: Vegetables : Mass

26. State True or False. If false correct the Statement.

a) To and fro Motion called Oscillatory Motion. - True

b) Robots will replace Human in Future. - True (This is a speculative statement, often considered true in future contexts.)

27. Draw the diagram of Leaf and Label the Parts.

Ans: A diagram of a leaf should be drawn, labeling parts like the midrib, veins, lamina (leaf blade), and petiole.

28. Mention the Desert Plants.

Ans: Cactus, Agave, Aloe Vera.

29. How do Birds catch their Prey?

Ans: Birds catch their prey with their beaks and claws (talons).

30. Name the locomotory Organ of Amoeba?

Ans: Pseudopodia (false feet).

31. Define Balanced Diet?

Ans: A diet that contains all the essential nutrients (carbohydrates, fats, proteins, vitamins, minerals) in the correct proportions.

32. Mention any two viral diseases?

Ans: Common cold, COVID-19 (Corona), Influenza.

33. Name any four Input Devices.

Ans: Keyboard, Mouse, Scanner, Light Pen, Microphone.

V. Answer any four Questions: (4x5=20)

34. The distance between two places is 43.65 km. convert it in to metre and cm.

Given: Distance = 43.65 km

Conversion to metres (m):

We know, 1 km = 1000 m.

43.65 km = 43.65 × 1000 m = 43650 m.

Conversion to centimetres (cm):

We know, 1 m = 100 cm.

43650 m = 43650 × 100 cm = 4,365,000 cm.

35. What is Motion? Classify different types of Motion with example?

Motion: An object is said to be in motion if it changes its position with respect to its surroundings over time.

Types of Motion:

• Linear Motion: Motion in a straight line. Example: A car moving on a straight road.
• Circular Motion: Motion along a circular path. Example: The tip of a clock's hand.
• Rotatory Motion: Motion of a body about its own axis. Example: A spinning top.
• Oscillatory Motion: Repetitive to and fro motion about a mean position. Example: A swinging pendulum.

36. What is meant by Food Adulteration?

Food Adulteration: It is the act of intentionally debasing the quality of food offered for sale either by the admixture or substitution of inferior substances or by the removal of some valuable ingredient.

Examples:

• Mixing water in milk.
• Adding papaya seeds to black pepper.
• Mixing brick powder in chili powder.

37. Make a list of the Functions of Root and Stem.

Functions of the Root:

• Anchorage: Fixes the plant firmly in the soil.
• Absorption: Absorbs water and minerals from the soil.
• Storage: Some roots store food, e.g., carrot, radish.

Functions of the Stem:

• Support: Supports the branches, leaves, flowers, and fruits.
• Conduction: Transports water and minerals from the roots to the leaves and food from the leaves to other parts of the plant.
• Storage: Some stems store food, e.g., potato, ginger.

38. Describe the Various Features which help Camel Dwell in the Desert.

A camel has several adaptations to survive in the desert:

• Long Eyelashes: Protect the eyes from blowing sand.
• Nostrils: Can be closed to prevent sand from entering.
• Hump: Stores fat, which can be metabolized for energy and water.
• Thick Lips: Allow it to eat thorny desert plants.
• Large, Flat Feet: Help it walk on sand without sinking.
• Water Conservation: Can drink large amounts of water at once and conserves water by producing dry dung and concentrated urine.

39. Tabulate the vitamins and their corresponding deficiency diseases.

Vitamin	Deficiency Disease
Vitamin A	Night Blindness
Vitamin B1	Beri-Beri
Vitamin C	Scurvy
Vitamin D	Rickets
Vitamin E	Nervous weakness, Sterility
Vitamin K	Excessive bleeding due to delayed blood clotting