6th Science - Term 1 Exam 2024 - Original Question Paper | Chennai District
Class: 6
FIRST TERM - SUMMATIVE ASSESSMENT(SA) - 2024-25
SCIENCE
Time Allowed: 2.00 Hours | Max. Marks: 60
PART - I
I. Choose the correct answer. (10x1=10)
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Quantity that can be measured is called __________.
a) Physical quantity
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Conversion of 7 m into cm gives --------
c) 700 cm
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Unit of speed is __________.
d) m/s
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__________ is essential to perform winnowing activity.
d) Air
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__________ is not made of Matter.
c) Light Ray
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Organ of absorption is __________.
a) Root
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Lizards breath through their __________.
c) Lungs
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Calcium is an example for __________.
d) Minerals
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Scurvy is caused due to the deficiency of __________.
c) Vitamin C
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Who is the Father of Computer?
d) Charles Babbage
II. Fill in the blanks: (5x1=5)
- SI unit of Length is metre.
- Gravitational force is a non-contact Force.
- Matter is made up of atoms.
- Primary organs of Photosynthesis are leaves.
- Camel stores fat in its Humps.
III. Match the following. (5x1=5)
| Question | Correct Match |
|---|---|
| 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)
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Define Measurement
Measurement is the comparison of an unknown quantity with a known standard quantity.
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Define Force.
A force is a push or a pull upon an object resulting from the object's interaction with another object.
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Why do We Separate Mixture?
We separate mixtures to:
1. Remove unwanted or harmful components.
2. Obtain useful components.
3. Obtain a highly pure substance. -
Define - Sedimentation.
Sedimentation is the process in which heavier, insoluble solid particles in a liquid mixture settle down at the bottom of the container.
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Complete the Analogy.
i) Sugar : Beam balance ;; Lime juice : Measuring Jar / Cylinder
ii) Milk : Volume ;; Vegetables : Mass / Weight
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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.
False. Correction: Robots will assist humans in many tasks, but they will not completely replace humans. -
Draw the diagram of Leaf and Label the Parts.
The main parts of a leaf to be labeled are:
- Lamina (Leaf Blade): The broad, flat part of the leaf.
- Petiole: The stalk that connects the leaf blade to the stem.
- Midrib: The central, thick vein running through the lamina.
- Veins: Network of tubes that branch out from the midrib.
- Apex: The tip of the leaf.
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Mention the Desert Plants.
Examples of desert plants are Cactus, Date Palm, and Acacia.
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How do Birds catch their Prey?
Birds catch their prey using their beaks and sharp claws, which are also called talons (especially in birds of prey like eagles).
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Name the locomotory Organ of Amoeba?
The locomotory organ of an Amoeba is called Pseudopodia (false feet).
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Define Balanced Diet?
A balanced diet is a diet that contains all the essential nutrients like carbohydrates, proteins, fats, vitamins, and minerals in the correct proportions required for the proper growth and functioning of the body.
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Mention any two viral diseases?
Two viral diseases are the Common Cold and Influenza (Flu).
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Name any four Input Devices.
Four input devices are: Keyboard, Mouse, Scanner, and Microphone.
V. Answer any four Questions: (4x5=20)
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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 that 1 km = 1000 m.
So, 43.65 km = 43.65 × 1000 m = 43,650 m.Conversion to centimetres (cm):
We know that 1 m = 100 cm.
So, 43,650 m = 43,650 × 100 cm = 4,365,000 cm.Final Answer: 43,650 m and 4,365,000 cm.
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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 time and its surroundings.
Types of Motion:
- Linear Motion: Motion along a straight line. Example: A car moving on a straight road.
- Circular Motion: Motion along a circular path. Example: The movement of the blades of a fan.
- Oscillatory Motion: Repetitive to and fro motion about a mean position. Example: The swinging of a pendulum.
- Random Motion: Motion that is irregular and unpredictable. Example: A butterfly flying in a garden.
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What is meant by Food Adulteration?
Food adulteration is the process of adding unwanted, inferior, or harmful substances to food items to increase their quantity or reduce costs. This practice lowers the quality of the food and can be harmful to health.
Examples include adding water to milk, mixing papaya seeds in black pepper, or adding artificial colors to sweets.
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Make a list of the Functions of Root and Stem.
Functions of Root:
- Anchorage: It firmly anchors the plant to the soil.
- Absorption: It absorbs water and essential minerals from the soil.
- Storage: In some plants like carrots and beetroots, roots store food.
Functions of Stem:
- Support: It supports the branches, leaves, flowers, and fruits.
- Conduction: It transports water and minerals from the roots to the leaves and food from the leaves to other parts of the plant.
- Storage: In some plants like potato and sugarcane, stems store food.
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Describe the Various Features which help Camel Dwell in the Desert.
Camels have several adaptations to survive in the desert:
- Hump: Stores fat, which can be broken down for energy and water.
- Long Eyelashes: Protect the eyes from blowing sand.
- Closable Nostrils: Can be closed to prevent sand from entering during sandstorms.
- Padded Feet: Wide, leathery pads on their feet prevent them from sinking into the soft sand.
- Water Conservation: They can drink a large amount of water at once and conserve it by excreting very concentrated urine and dry dung.
- Thick Lips: Allow them to eat thorny desert plants without injury.
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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 K Excessive bleeding (delay in blood clotting)