Class 6 Mid Term Question Paper 2025-26 Science

CBSE CLASS 6
Mid Term Question Paper
Session 2025-26

SCIENCE

Exam CBSE Class 6
Subject Science
Session 2025-26
Document Type Mid Term Question Paper

Notes · Sample Papers · Previous Year Papers · Mock Tests

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MID TERM
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SCHOOLS, ODISHA
EXAMINATION 2025-26
QUESTION PAPER
HALF YEARLY EXAMINATION (2025-26)

� Please check that this question paper contains 4 printed pages.
� Check that this question paper contains 38 questions.
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� Write down the Serial Number of the question in� the left side of the margin before attempting it.

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CLASS - VI

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SUB : SCIENCE
Max. Marks-80
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Time Allowed-3 Hours
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General Instructions

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1. All questions are
2. The question paper contains 4 sections. Section A contains MCQs, Assertion-Reason based questions
and Case Study-based questions (1-mark questions), Section B contains SA-I (2-marks questions),
Section C contains SA-II (3-marks questions) and Section D contains LA (5-marks questions).
3. Q. No. 1 to 15 are Multiple Choice Questions and carries 1 mark each.

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4. Q. No. 16 is Assertion-Reason based question and carries 1 mark.

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5. Q. No. 17 is Case study-based/source - based question and carries five bits of 1 mark each (answer any

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s and carries 2 marks each.
four).
6. Q. No. 18 to 28 are short answer type (SA I) a
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ag II) questions and carries 3 marks each.
questions
7. Q. No. 29 to 34 are short answer types (SA
8. Q. No. 35 to 38 are long answer type questions (LA) and carries 5 marks each.

SECTION-A
Choose the most appropriate answer
1.� The biotic environment includes— (1)

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(a) only the producers and the consumers (b) only the decomposers and the producers

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(c) only the consumers and decomposers (d) producers, consumers as well as decomposers

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2.� Vermi composting is done by------- (1)

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(a) Fungus (b) bacteria

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(c) worms (d) aquatic animals

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3.� Match the following (1)
1. Iron a. Weakening of bones
2.Vitamin B b. Clotting of blood
3.Vitamin K c. Anaemia
4.Calcium d. Scurvy
5.Vitamin C e. Beri-Beri

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(a) 1-d,2-b,3-e,4-a,5-c (b) 1-c,2-e, 3-b,4-a,5-d

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(c) 1-c,2-b,3-d,4-a,5-e (d) 1-b,2-c,3-e,4-a,5-d

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4.� ___________is the mineral essential for the digestion of carbohydrate and fats. (1)
(a) Iron (b) Calcium
(c) Phosphorous (d) Iodine
5.� Solubility of a solid, in water generally _____on increasing the temperature. (1)
(a) Decreases (b) Increases
(c) remain constant (d) neither decreases nor increases
6.� The process of loading helps to (1)
(a) slow down the rate of sedimentation (b) speed up the rate of sedimentation
(c) speed up the rate of decantation (d) slow down the rate of decantation
7.� Iron filling: Magnetic separation :: Iodine:_________ (1)
(a) evaporation (b) sublimation
(c) crystallisation (d) Sieving
8.� Winnowing is used to separate __________ (1)
(a) lighter husk from heavier grains (b) iron pieces from a given mixture
(c) heavier grains from the stalk (d) butter from curd
9.� Type of change involved in a burning candle: (1)
(a) Physical and reversible changes (b) Chemical and irreversible changes
(c) Chemical and reversible changes (d) Physical and irreversible changes
10.�Breaking of a glass tumbler is a: (1)
(a) physical change (b) chemical change
(c) slow change (d) reversible change
11.�Which of these is NOT an invertebrate? (1)
(a) Snail (b) Starfish
(c) Cobra (d) Octopus
12.�Perennial plants are those plants which live for (1)
(a) many years (b) three years
(c) two years (d) one year
13.�Select the one which is not a flowering plant. (1)
(a) grasses (b) mango
(c) mosses (d) coconut
14.�The object through which we can see partially, but not very clearly is ________ (1)
(a) a rubber ball (b) a sheet of tracing paper
(c) a sheet of plane glass (d) a compact disk
15.�Which of the following method is used when there is a difference in size and colour of desirable and
undesirable constituents? (1)
(a) Decantation (b) Threshing
(c) Filtration (d) Handpicking
16.�Assertion (A) : Bacteria is a unicellular organism. (1)
Reason (R) : It consists of many cells.

The above question consists of two statements – Assertion (A) and Reason (R). Answer the question
selecting the appropriate option given below:
(A) Both A and R are true, and R is the correct explanation of A.
(B) Both A and R are true, and R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true.

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m 17.�CASE-BASED QUESTION s e m
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as Read the given paragraph and write the answers. (Any four) ag (4)

Light is described as the energy that enables sight, emitted from sources like the Sun, and traveling in
straight lines. Transparent objects allow light to pass through them, while opaque objects block light. This
property of light is essential for various natural phenomena, such as the formation of eclipses and the
functioning of optical instruments. The study of light continues to reveal its importance in both everyday

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life and complex scientific applications.
(a) How is shadow formed?
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(b) Name the type of objects that do not allow light to pass through them.
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(c) State rectilinear propagation of light.
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(d) Name two artificial sources of light.
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(e) Define lateral inversion.
a SECTION-B
18.� Define the term photosynthesis. Write the equation for it. (2)
19.� Differentiate between Autotrophs and Heterotrophs. (2)
20.� State the importance of carbohydrate in our diet. (2 points) (2)
21.� A mineral X is found in sea food and fruits. The mineral X is required for proper function of thyroid
gland. Its deficiency causes disease Y. Identify X and Y. (2)
22.� Give the meaning of the term ‗classification‘. State its one advantage. (2)

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OR
Name two examples each of (i) lustrous materials (ii) dull materials.

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23.� A mixture contains three components: A, B, and C in a dish. A magnet is used to separate A, and then

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B is separated from C by the method of sublimation. C is left in the dish which is insoluble in water.

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(2)
(a) Identify A, B and C.
(b) Name the type of above mixture.
24. Define the term ‗Crystallisation‘. Name two substances which can be obtained in their pure form by
the given method. (2)
OR
Distinguish between homogeneous and heterogeneous mixtures giving one example from each type.

25. (2)

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a. Identify the apparatus / device used for separation in the given figure.
b. State the principle of the above separation method.
26. Give two examples each of animals which reproduce (a) by laying eggs and (b) by giving birth to
young ones. (2)
27. ‗All living things respond to external stimuli.‘ Justify the statement. (2)

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Name two types of terrestrial plants. How do they differ on the basis of water requirements ?

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28. Define irregular reflection and state its application in our daily life. (2)
SECTION - C
29. Grass Rabbit Lion Owl
(a) Define the term food chain. (3)
(b) Write the type of food chain.
(c) Identify the primary and secondary consumers.

30. Describe a test for the presence of protein in a food sample. (3)
OR
Explain the method to test the presence of starch in a food sample.
31. (a) Sabita took a glass tumbler and hold it against light. She was able to see the light on the
other side of the tumbler. Identify the property of the glass tumbler and also, define the property.
(b) ―Wood is an opaque material‖. Give reason. (3)

32. ―Water cycle is a natural change‖. Justify. State whether it is a
(a) physical or chemical change
(b) irreversible or reversible change. (3)
OR
―Changes involve energy‖. Justify this statement.
33. a. Draw the flow chart to show the classification of plants on the basis of nutrition. (3)
b. State one point to show the importance of animal excreta.
34. (a) State the relative positions of the sun, moon and the earth, during a lunar eclipse with a suitable
diagram. (3)
(b) Is it possible to see solar eclipse on every new moon day? Justify your answer.
OR
Distinguish between a shadow and an image formed by a plane mirror. (3 points each)
SECTION - D
35. (a) Explain: Sedimentation and Decantation. (5)
(b) Give a neat and labelled diagrammatic representation of the above method of separation.
36. (a) Distinguish between fast and slow changes. (5)
(b) Classify the following changes into more than one category
(i) Melting of ice
(ii) Rusting of iron
(c) State two examples of the irreversible biological changes that takes place in nature.
37. (a) How are vertebrates different from invertebrates ? (5)
(b) Write two points of difference between herbs and shrubs.
(c) A cloud is considered as non-living even though it can move and grow bigger. Explain, why?

38. With the help of suitable diagrams, show that the size of shadow formed, depends upon the relative
position of the source and the opaque object. (5)
OR
With the help of a diagram show the image formed by a pinhole camera. Also write down the
properties of the image formed by a pinhole camera.

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