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

6th Science First Term Exam Question Paper 2024 with Solutions - Samacheer Kalvi

6th Science - First Term Exam 2024 - Question Paper with Solutions | Coimbatore District

6th Science Question Paper

Original Question Paper

6th Science First Term Exam 2024 - Page 1 6th Science First Term Exam 2024 - Page 2

Solutions

I. Choose the correct answer (8 x 1 = 8)

  1. Conversion of 7m into cm gives ______.
    c) 700 cm (Since 1m = 100cm, 7m = 7 x 100 = 700 cm)
  2. Motion of a body in a circle is called ______ motion.
    b) circular
  3. ______ is essential to perform winnowing activity.
    d) Air
  4. Seeds from water melon can be removed by ______.
    a) hand picking
  5. Pond is an example of ______ ecosystem.
    b) freshwater
  6. Which animal has the special organs of breathing Called gills.
    c) Fish
  7. Calcium is an example for ______.
    d) minerals
  8. ______ is another form of computer.
    b) Mobile

II. Fill in the blanks (5 x 1 = 5)

  1. S.I unit of length is ______.
    S.I unit of length is metre.
  2. A bike moving on a straight road is an example for ______ motion.
    A bike moving on a straight road is an example for linear motion.
  3. Matter is made up of ______.
    Matter is made up of atoms.
  4. Camel stores ______ in its hump.
    Camel stores fat in its hump.
  5. Influenza is a ______ disease.
    Influenza is a viral disease.

III. Say true or false. If false correct the statement (5 x 1 = 5)

  1. Length of one's chest can be measured using a metre scale.
    True.
  2. To and fro motion is called oscillatory motion.
    True.
  3. Air is not Compressible.
    False.
    Correct statement: Air is highly compressible.
  4. Green plants need sunlight.
    True.
  5. Habitat is a living or dwelling place of an organism.
    True.

IV. Match the following (5 x 1 = 5)

Question Answer
19. Vitamin A Night blindness
20. Desert Dry Place
21. Photosynthesis Leaves
22. A coconut falling from tree Linear motion
23. Kilo 10³

V. Complete the analogy (3 x 1 = 3)

  1. Solid: Definite Shape :: ______ : Shape of the vessel
    Solid: Definite Shape :: Liquid : Shape of the vessel
  2. Kicking a ball: Contact force :: Falling of leaf : ______
    Kicking a ball: Contact force :: Falling of leaf : Non-contact force (Gravitational force)
  3. Milk: Volume :: Vegetables : ______
    Milk: Volume :: Vegetables : Mass

VI. Answer briefly (Any seven) (7 x 2 = 14)

  1. What are the two parts present in a measurement?
    The two parts present in a measurement are:
    1. A number
    2. A unit
  2. Define force.
    Force is a push or a pull on an object that can change the state of rest or motion of the object.
  3. Give an example for mixture and justify your answer with reason.
    Example: Lemon juice.
    Justification: It is a mixture because it contains water, sugar, salt, and lemon extract. These components are not chemically combined and can be separated by physical methods.
  4. Mention few desert plants.
    Some desert plants are Cactus, Aloe vera, and Date palm.
  5. Classify the plants on the basis of habitats.
    Plants are classified based on habitats into two main types:
    1. Terrestrial Plants: Plants that grow on land (e.g., Mango tree, Cactus).
    2. Aquatic Plants: Plants that grow in water (e.g., Lotus, Hydrilla).
  6. What are the body parts of a snake?
    The body of a snake is divided into three parts: Head, Trunk, and Tail. They do not have limbs.
  7. Why should fruits and vegetables not be washed after cutting?
    Fruits and vegetables should not be washed after cutting because it can lead to the loss of water-soluble vitamins (like Vitamin C and B-complex) and minerals present in them.
  8. Arrange the following in correct sequence.

    a) Leaf - Stem - Root - Flower
    Correct Sequence: Root → Stem → Leaf → Flower

    b) Transpiration - Conduction - Absorption - Fixation
    Correct Sequence: Fixation → Absorption → Conduction → Transpiration

  9. Name any four input devices.
    Four input devices are: Keyboard, Mouse, Scanner, and Microphone.

VII. Answer in detail (4 x 5 = 20)

  1. a) While measuring the length of a sharpened pencil, reading of the scale at one end is 2.0 cm and at the other end is 12.1 cm. What is the length of the pencil?
    Reading at the other end = 12.1 cm
    Reading at one end = 2.0 cm
    Length of the pencil = Reading at the other end - Reading at one end
    Length of the pencil = 12.1 cm - 2.0 cm = 10.1 cm
    b) Fill in the following chart.
    Property Basic unit Instrument used for measuring
    Length metre (m) Measuring tape / Metre scale
    Mass kilogram (kg) Beam balance / Electronic balance
    Time second (s) Stopwatch / Clock

    (OR)

    Give examples.
    1. Linear motion: A car moving on a straight road.
    2. Curvilinear motion: A ball thrown in an arc.
    3. Circular motion: The motion of the blades of a fan.
    4. Oscillatory motion: The motion of a pendulum in a clock.
    5. Irregular motion: The motion of a flying butterfly.
  2. a) Define the term matter.
    Matter is defined as anything that has mass and occupies space. It is made up of tiny particles called atoms.
    b) Give the main difference between a pure substance and an impure substance.
    Pure Substance Impure Substance (Mixture)
    Made of only one kind of particle (atoms or molecules). Consists of two or more substances mixed physically.
    Has a fixed melting and boiling point. Does not have a fixed melting or boiling point.

    (OR)

    Distinguish the properties of solid, liquid and gas.
    Property Solid Liquid Gas
    Shape Definite shape Takes the shape of the container No definite shape
    Volume Definite volume Definite volume Fills the entire container
    Compressibility Negligible Slightly compressible Highly compressible
    Arrangement of particles Tightly packed Loosely packed Very far apart
  3. Make a list of functions of root and stem.
    Functions of Root:
    • Fixation: Anchors 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 Stem:
    • Support: Provides support to branches, leaves, flowers, and fruits.
    • Conduction: Transports water and minerals from the roots to the upper parts of the plant.
    • Transport: Transports food prepared by the leaves to other parts of the plant.
    • Storage: Some stems store food (e.g., Potato, Sugarcane).

    (OR)

    Describe the various features that help camel dwell well in the desert.
    • Long Eyelashes: Protect the eyes from blowing sand.
    • Closable Nostrils: Prevent sand from entering the nose.
    • Hump: Stores fat, which can be metabolized for energy and water.
    • Padded Feet: Broad, flat feet prevent the camel from sinking into the sand.
    • Thick Lips: Allow the camel to eat thorny desert plants without injury.
    • Water Conservation: Can drink a large amount of water at once and excretes very little urine to conserve water.
  4. Tabulate the vitamins and the corresponding deficiency diseases.
    Vitamin Deficiency Disease
    Vitamin A Night Blindness
    Vitamin B1 (Thiamine) Beriberi
    Vitamin C (Ascorbic Acid) Scurvy
    Vitamin D Rickets
    Vitamin E Sterility
    Vitamin K Haemorrhage (Excessive bleeding)

    (OR)

    List applications of a computer.
    Applications of a computer include:
    • Education: Used for online classes, research, and e-learning.
    • Communication: Facilitates email, video conferencing, and social media.
    • Entertainment: Used for playing games, watching movies, and listening to music.
    • Banking: Essential for ATMs, online banking, and managing financial transactions.
    • Healthcare: Used for maintaining patient records, medical imaging (X-rays, CT scans), and research.
    • Business: Used for data management, accounting, and marketing.
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