Class 7 Question Paper 2025 Science

ANNUAL EXAMINATION

Question Paper
2025
NCERT BASED SYLLABUS

FOR CBSE AND STATE BOARD
FOLLOWING NCERT

KVS QUESTION PAPERS

SESSION ENDING EXAM- (2024-25)
SUBJECT: SCIENCE
CLASS:VII

M.M. : 60 Time: 2 Hrs 30 min

General Instructions-:
1. Section A comprises of question numbers 1 to 10 These are MCQ carrying one mark each.
You have to select one most appropriate response out of the four provided options.
2. Section B comprises question numbers 11 to 15 These are VSAQs carrying two marks each.
3. Section C comprises question numbers 16 to 20. These are SAQs carrying three marks
each.
4. Section D comprises question numbers 21 to 22. These are LAQs carrying five marks each.
5. Section E comprises question numbers 23 to 25. These are CCTQs carrying five marks each

SECTION-A
Multiple- Choice Questions- (1×10=10)
1. Bryophyllum can reproduce by its
a.​ Stem c .Leaves
b.​ Roots d. Flower
2. A virtual image larger than the object can be produced by a
a.​ Concave lens c. Concave mirror
b convex mirror d.plane mirror
3. Which of the following phenomenon is represented by the given diagram

a.​ Fertilisation c. Dispersal
b. Zygote d.Pollination
4. The distance-time graph of vehicle moving with constant speed is _______line
a.​ Curved c.Straight
b.​ Horizontal d.Parallel

5

Identify the mirror in the above picture
a. Concave mirror c.Convex mirror
b. Diverging mirror d.Both b and c
6. Micro-organisms act upon the dead plants to produce

a.​ Sand c. Humus
b.​ Mushroom d. Wood
7. Pick from the following one Chemical used to disinfect water.
a.​ Chlorine c. Washing soda
b.​ Silica d. Coal
8. Which of the following is/are products of wastewater treatment?
a.​ Biogas c.Both biogas and sludge

b.​ Sludge d. Aerator

9. The basic unit of speed is:
a. km/ min. c. m/ min
b. km/ h. d. m/s
10. Mature ovary forms the
a. Seed. c stamen
b. pistil. d fruit.
SECTION-B 2x5=10
11.What is the function of chlorophyll?
12.The distance between two stations is 240 km. A train takes 4 hours to cover this distance.
Calculate the speed of the train.
13.What is heating effect of current? Write two appliances which use the heating effect of
current.
14.Explain the difference between self pollination and cross- pollination.
15. State two difference between a Convex and concave mirror.
SECTION-C 3x5=15
16.State the characteristics of the image formed by a plane mirror.
17. Describe the various ways by which seeds are dispersed.
18.When the current is switched on through a wire, a compass needle kept nearby gets
deflected from its North- south position. Explain.
19.(a) Show the shape of the distance -time graph for the motion in the following:
(i) A car moving with a constant speed.
(ii) A car parked on a side road
(b) A simple pendulum takes 32 s to complete 20 oscillation. What is the time period of the
pendulum?
20. Explain the function of the bar screens in a wastewater treatment plant.
SECTION- D 5x2=10
21. Name the following -
a). A plant which reproduces by its leaves.
b). A plant that has winged seeds.
c). A spore producing plant.
d). A unisexual flower.
e). The reproductive part of a plant.
22 a). Explain how forest prevent flood

b).Why should we worry about the conditions and issues related to the forests far from
us?
c) What do you mean by understorey.

SECTION -E 5X3=15
Case Based questions-
23. Sewage is wastewater released by homes, industries, hospitals, offices and other users. It also
includes rainwater that has run down the street during a storm or heavy rain. The water that washes
off roads and rooftops carries harmful substances with it. Sewage is a liquid waste. Most of it is water,
which has dissolved and suspended impurities. In a home or a public building generally one set of
pipes brings clean water and another set of pipes takes away wastewater. Imagine that we could see
through the ground. We would see a network of big and small pipes, called sewers, forming the
sewerage. It is like a transport system that carries sewage from the point of being produced to the
point of disposal, i.e. treatment plant.
Manholes are located at every 50 m to 60 m in the sewerage, at the junction of two or more sewers
and at points where there is a change in direction.
Que. 1) Manholes are located at how much distance in the sewerage?
(a) 50 to 60m
(b) 60 to 50m
(c) 50m
(d) 100m
Que. 2) Sewage is waste water released by which of the following?
(a) Homes
(b) Industries
(c) Offices
(d) All
Que. 3) Where does the sewers transports the sewage after collecting all the wastewater from various
sources?
(a) Treatment plant
(b) Plant
(c) Reservoir
(d) None
Que. 4) Define sewers.
Que. 5) Rain water that runs down in the streets during heavy rainfall is also waste water is it true or
false.

24. Prof Ahmad asked children to pick up leaves from the forest floor and observe them under
a hand lens. They found tiny mushrooms over the decaying leaves. They also saw an army of
tiny insects, millipedes, ants and beetle on them. They were wondering how these organisms
live there Paheli wondered what mushroom and other micro-organisms eat. Prof Ahmad replied
that they feed upon the dead plant and animal tissues and convert them into a dark coloured
substance called humus. The micro-organisms which convert the dead plants and animals to
humus are known as decomposers. These micro-organisms play an important role in the forest.
Soon, Paheli removed some dead leaves and discovered under them a layer of humus on forest
floor. The presence of humus ensures that the nutrients of the dead plants and animals are
released into the soil. From there, these nutrients are again absorbed by the roots of the living
plants. “What happens if an animal dies in the forest? ” Sheila asked. Tibu replied the dead
animals become food for vultures, crows, jackals and insects.” In this way, the nutrients are
cycled. So, nothing goes waste in a forest.
Que. 1) Children found………………over the…………………..

Que. 2) The nutrients in the soil are absorbed by which part of the plant?
Que. 3) What does the presence of humus ensures?
Que. 4) What happens if an animal dies in the forest?
Ques. 5)What do you mean by humus?

25 In 1583, Galileo for the first time demonstrated characteristics of a simple pendulum. The
measurement of small time intervals (less than an hour) was made possible when pendulum
clocks were developed.
A simple pendulum displays to and fro or oscillatory motion (a type of periodic motion) at fixed
intervals of time. A simple pendulum consists of a small metal ball suspended from a fixed point
such that it can swing freely under the influence of gravity. The small metal ball is called a bob.
The length of the thread from the point of suspension to the centre of the bob is called length of
the pendulum. The time-period of the pendulum depends on its length.

When the pendulum is at rest, it is at position A. This is called its mean position (or rest
position). The movement of bob to and away from its mean position (from A to B to A and then
from A to C to A) , or one full swing (from B to A to C and then back from C to A to B) is called
one oscillation.
Ques.1. Who demonstrated the characteristics of a simple pendulum?
Ques.2. What type of motion is illustrated by a simple pendulum?
Ques.3. What does the time period of the pendulum depend upon?
Ques.4. What do you mean by length of the pendulum?
Ques.5. Give one other example of oscillation.

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