KENDRIYA VIDYALAYA SANGATHAN
LUCKNOW REGION
SAMPLE PAPER
CLASS VII (2021-22)
Time- 2Hours
SUBJECT SCIENCE M.M. 40
General Instructions:
·
This question paper comprises of 24 Questions.
·
Q.1 to 10 comprises of
ten multiple choice questions of 0.8 mark each.
·
Q.11 comprises of five
parts of 0.8 marks each. Answer the
questions in one word.
·
Q.12 comprises of
five fill in the blanks of 0.8 marks
each.
·
Q.13 to 21 comprises of short answer questions . Answer the
questions in one or two sentences.
·
Q22 to 24 comprises of long answer questions of 3.2 marks
each.
Q1. During
heavy exercise we can get cramps in the legs due to the accumulation of
(a)
Carbon dioxide
(b) Lactic acid
(c)Alcohol (d) Water
Q2. In plants
water is transported through
(a)
Xylem
(b) Phloem (c)
Stomata (d) Root hair
Q3. The
reproductive part of plant is
(a)
Leaf
(b) Stem (c)
Root (d) Flower
Q4. The basic
unit of speed is
(a)
Km/min
(b) m/min (c)
km/h (d) m/s
Q5. The
correct symbol of an electrical cell is
(a) 
(b) 
(c) 
(d) 
Q6. A virtual image larger than object can be produced by a
(a)
Concave lens
(b) Concave mirror
(c) Convex mirror
(d) Plane mirror
Q7. The
different sources of irrigation are
(a)
River (b)Lake (c) Underground water (d) all the above
Q8.
Microorganisms act upon the dead plants to produce
(a)
Sand (b)
Mushrooms (c)Humus (d) Wood
Q9. Waste
water released by houses is called
(a)
Sludge
(b)Sewage (c) Tap
water (d) Potable
water
Q10. In cockroaches
air enters the body through
(a)Lungs (b)Gills (c)Spiracles (d) Skin
Q11. Answer
in one word
(a) Name any one anaerobic
organism
(b) The blood vessel which carries blood from heart to all parts of the body
(c) The process of fusion of male and female gamete
(d) The basic unit of time
(e) The safety device based on the heating effect of electric current
Q12. Fill in
the blanks
(a) An image that cannot be obtained on a screen is called ______.
(b) The water bearing layer of earth is _______.
(c) The insects and birds helps
flowering plants in_______.
(d) Cleaning of water is the process of removing _________.
(e) Longer line in the symbol for a cell represent its _________ terminal.
Q13. Write
two difference between aerobic and
anaerobic respiration.
Q14. Give
two functions of stomata.
Q15. State
any two difference between asexual and sexual reproduction.
Q16. A
simple pendulum takes 48s to complete 20 oscillations. What is the time period
of pendulum?
Q17. Write
any two uses of electromagnets.
Q18. Give
one use each of concave and convex mirror.
Q19. You
have been asked to maintain a garden . Write any two ways by which you can
minimise the use of water.
Q20. Forests
are the lungs of the earth justify this statement .
Q21. What
are the two practices you will follow to
prevent clogging of drain in your house ?
Q22. Find
the part A,B,C,D of excretory system
Q23.
Identify the mirror in following figure. Write two characteristics of the image
formed by this mirror. Write any one use of this mirror.
Q24.
(a)Identify and label the part of flower given below.
(b) What are the two means of dispersal of seed?
CREATIVE
AND CRITICAL THINKING TEST
SUBJECT SCIENCE
CLASS VII
General Instructions :
Read the information carefully
and answer the questions.
A SOURCE OF
TRADITIONAL MEDICINES
Plants have been used for medicinal purposes long before prehistoric period. Ancient Unani manuscripts Egyptian papyrus and Chinese writings described the use of herbs. Evidence exist that Unani Hakims, Indian Vaids and European and Mediterranean cultures were using herbs for over 4000 years as medicine. The ancient scholars only believed that herbs are only solutions to cure a number of health-related problems and diseases. They conducted thorough study about the same, experimented to arrive at accurate conclusions about the efficacy of different herbs that have medicinal value. Most of the drugs, thus formulated, are free of side effects or reactions. This is the reason why herbal treatment is growing in popularity across the globe. These herbs that have medicinal quality provide rational means for the treatment of many internal diseases, which are otherwise considered difficult to cure. (1×5)
Q 1.Name any two plants that are considered as home
remedies in many parts of the country
Q 2. What plant’s gel is often used in lotions and sunblock’s?
Q3.Eucalyptus oil is used most often to relieve which
condition?
A. Obesity
B. Acne
C. Bloating
D. Coughing
Q4. In India, the use of herbal medicines is known
as……………………..
Q5.Herbal medicine is based on the use of Plants and
Plant Extracts. (YES/NO)
MUSCLE
FATIGUE
Ninja and Ballet both were winners of 2016 running race (200 m) state level. Unfortunately, Ninja
fell down while running in the tracks during hits. His friends were hopeless of his falling on the
track. He could not wake up suddenly to complete the race. Then doctor was called. He applied a
massage on the muscle and advice the child to do mild movement of the limbs and fed some
glucose. After sometime the child got relief from the pain and got up.
Muscle fatigue
has a number of possible causes including impaired blood flow, ion
imbalance
within the muscles, nervous fatigue and most importantly the accumulation of
lactic acid in
the muscles.
Lactic acid is
a by-product of anaerobic metabolism in which the body produces energy without
using oxygen. Since the discovery of lactic acid, it is responsible for muscle
fatigue and also tissue damage induced by lactic acid. (1X5)
Q6. How could Ninja be able to overcome the problem
of muscle fatigue in running in future race competition.
(a) By
exercising muscle regularly
(b) Drinking
more water
(c) Developing
muscles which can produce energy in the absence of O2 for longer period
(d)
Eating more energy giving food
Q7. After a vigorous exercise, you may experience
muscular pain in your skeletal muscles. Why does this happen?
Q8. During hard exercise/running, we start
breathing fast. Why?
Q9.During physical exercises, the heart rate
needs to be increased along with breathing rate.
[YES/NO)
Q10.Which mode of respiration is involved in
accumulation of lactic acid in muscles.
THE HYDROLOGIC
CYCLE
Water cycle,
also called hydrologic cycle, cycle that involves the continuous circulation of
water in
the
Earth-atmosphere system. Of the many processes involved in the water cycle, the
most important
are
evaporation, transpiration, condensation, precipitation, and runoff. Although
the total amount of water within
the cycle
remains essentially constant, its distribution among the various processes is
continually changing.
(1X5)
Search the
answer in the given word search puzzle according to the question:
Q11. A process which circulates water
continuously ………………………………
Q12. Transition of water from gas state to liquid
state ………………………………
Q13.Evaporation of water from the leaves of
plants ………………………………
Q14.The primary form of moisture in the
atmosphere ……………………
Q15. It occurs when air cannot hold condensed
water ………………………………
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