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 Page 1


                                                      
                                 
  
 
 
Section- A (PHYSICS) 
Q.1. Fill in the blanks:-           (1) 
(vii) Moisture laden winds are called _____________. 
(viii) The central calm area of a cyclone is known as _____________. 
Q.2. A man standing close and in front of a spherical mirror finds image having a small 
head and a fat body. What is the shape of       (1) 
(i) top part of the mirror? 
(ii) bottom part of the mirror? 
 
Q.3. Which effect of current does the filament in an electric bulb utilize?  (1) 
 
Q.4. Complete the analog-           (2) 
(i) speed of vehicles : speedometer :: speed of wind : _____________. 
(ii) length : metre :: current : ____________.   
Q.5. Differentiate between converging and diverging mirrors. (Give two points each) 
            (2) 
Q.6. Name a safety device based on the heating effect of current. How does it work?  
            (2) 
Q.7. How are thunderstorms caused?        (2) 
Q.8. Draw a circuit diagram of a dry cell connected to a bulb through a switch. Mark the 
negative and positive terminals of the cell and the direction of flow of current in the 
diagram.            (2) 
 
 
Q.9. Give reason, why-          (3) 
(i) When we blow over a paper strip, it blows upwards. 
(ii) Concave mirrors are used as shaving mirrors. 
 
Q.10. (i)  Observe the diagram and write the aim of the experiment?     (1 + 2= 3) 
 
(ii) Why does the balloon inflate when  
       it is kept under hot water? 
 
 
Page 2


                                                      
                                 
  
 
 
Section- A (PHYSICS) 
Q.1. Fill in the blanks:-           (1) 
(vii) Moisture laden winds are called _____________. 
(viii) The central calm area of a cyclone is known as _____________. 
Q.2. A man standing close and in front of a spherical mirror finds image having a small 
head and a fat body. What is the shape of       (1) 
(i) top part of the mirror? 
(ii) bottom part of the mirror? 
 
Q.3. Which effect of current does the filament in an electric bulb utilize?  (1) 
 
Q.4. Complete the analog-           (2) 
(i) speed of vehicles : speedometer :: speed of wind : _____________. 
(ii) length : metre :: current : ____________.   
Q.5. Differentiate between converging and diverging mirrors. (Give two points each) 
            (2) 
Q.6. Name a safety device based on the heating effect of current. How does it work?  
            (2) 
Q.7. How are thunderstorms caused?        (2) 
Q.8. Draw a circuit diagram of a dry cell connected to a bulb through a switch. Mark the 
negative and positive terminals of the cell and the direction of flow of current in the 
diagram.            (2) 
 
 
Q.9. Give reason, why-          (3) 
(i) When we blow over a paper strip, it blows upwards. 
(ii) Concave mirrors are used as shaving mirrors. 
 
Q.10. (i)  Observe the diagram and write the aim of the experiment?     (1 + 2= 3) 
 
(ii) Why does the balloon inflate when  
       it is kept under hot water? 
 
 
                                                      
                                 
  
Q.11. Write down three precautions which one must take in advance to tackle with the 
problems created by a cyclone.             (3) 
 
Q.12.             (1+2+2= 5)  
 
(i) What is the underlying principle behind the 
working of an electric bell? 
(ii) Identify „A? and „B? and tell their functions. 
(iii) Why do we prefer to use an electromagnet instead 
of a permanent magnet in an electric bulb? 
 
Section- B (CHEMISTRY) 
 
Q.13 The process of preparing pure crystals of a substance from its concentrated solution 
 is               (1) 
(i) Galvanization  
(ii) Rusting 
(iii) Crystallization 
(iv) Weathering 
Q.14 Clean water fit for drinking is         (1) 
(i) Potable water 
(ii) Clarified water 
(iii) Treated water 
(iv) None of above 
Q.15 The product formed when a zinc piece is introduced in a solution of copper 
sulphate is            (1) 
(i) Ammonium sulphate 
(ii) Copper sulphate 
(iii) Zinc sulphate 
(iv) Zinc hydroxide 
Q.16 Which of these soil particles are largest in size       (1) 
(i) Sand  
(ii) Clay 
(iii) Silt 
(iv) Humus 
Q.17 (i) State two conditions necessary for rusting.         (1 +1= 2) 
 (ii)Give the word equation for the chemical reaction involved in the process of  
  rusting. 
Q.18 Label the diagram given below:          (2) 
  
  
 
 
  
Page 3


                                                      
                                 
  
 
 
Section- A (PHYSICS) 
Q.1. Fill in the blanks:-           (1) 
(vii) Moisture laden winds are called _____________. 
(viii) The central calm area of a cyclone is known as _____________. 
Q.2. A man standing close and in front of a spherical mirror finds image having a small 
head and a fat body. What is the shape of       (1) 
(i) top part of the mirror? 
(ii) bottom part of the mirror? 
 
Q.3. Which effect of current does the filament in an electric bulb utilize?  (1) 
 
Q.4. Complete the analog-           (2) 
(i) speed of vehicles : speedometer :: speed of wind : _____________. 
(ii) length : metre :: current : ____________.   
Q.5. Differentiate between converging and diverging mirrors. (Give two points each) 
            (2) 
Q.6. Name a safety device based on the heating effect of current. How does it work?  
            (2) 
Q.7. How are thunderstorms caused?        (2) 
Q.8. Draw a circuit diagram of a dry cell connected to a bulb through a switch. Mark the 
negative and positive terminals of the cell and the direction of flow of current in the 
diagram.            (2) 
 
 
Q.9. Give reason, why-          (3) 
(i) When we blow over a paper strip, it blows upwards. 
(ii) Concave mirrors are used as shaving mirrors. 
 
Q.10. (i)  Observe the diagram and write the aim of the experiment?     (1 + 2= 3) 
 
(ii) Why does the balloon inflate when  
       it is kept under hot water? 
 
 
                                                      
                                 
  
Q.11. Write down three precautions which one must take in advance to tackle with the 
problems created by a cyclone.             (3) 
 
Q.12.             (1+2+2= 5)  
 
(i) What is the underlying principle behind the 
working of an electric bell? 
(ii) Identify „A? and „B? and tell their functions. 
(iii) Why do we prefer to use an electromagnet instead 
of a permanent magnet in an electric bulb? 
 
Section- B (CHEMISTRY) 
 
Q.13 The process of preparing pure crystals of a substance from its concentrated solution 
 is               (1) 
(i) Galvanization  
(ii) Rusting 
(iii) Crystallization 
(iv) Weathering 
Q.14 Clean water fit for drinking is         (1) 
(i) Potable water 
(ii) Clarified water 
(iii) Treated water 
(iv) None of above 
Q.15 The product formed when a zinc piece is introduced in a solution of copper 
sulphate is            (1) 
(i) Ammonium sulphate 
(ii) Copper sulphate 
(iii) Zinc sulphate 
(iv) Zinc hydroxide 
Q.16 Which of these soil particles are largest in size       (1) 
(i) Sand  
(ii) Clay 
(iii) Silt 
(iv) Humus 
Q.17 (i) State two conditions necessary for rusting.         (1 +1= 2) 
 (ii)Give the word equation for the chemical reaction involved in the process of  
  rusting. 
Q.18 Label the diagram given below:          (2) 
  
  
 
 
  
                                                      
                                 
  
 
Q.19 Define the following:         (2) 
(i) Sewerage  (ii) Sewers  
 
Q.20 Calculate the percentage of water absorbed by 90 gm of soil sample when the initial 
volume of water taken is 60 ml and the final volume of water is 30 ml in the 
measuring cylinder.          (2) 
 
Q.21 (i) Complete the following word equation:      (3) 
(a) Magnesium + Oxygen        ___________ 
(b) Calcium hydroxide + Carbon dioxide    __________ + __________ 
 (ii)Arrange clayey, sandy and loamy soils in the increasing order of their percentage 
  of water absorbed. 
   
Q.22 (i) What is the function of bar screens?       (3) 
(ii)Expand STP. 
(iii)What is activated sludge? 
(iv)Which horizon of soil is the home for soil organisms? 
Q.23 (i) Name the following:            (1 + 2= 3) 
(a) Breaking down of rocks by the climatic changes. 
(b) A section of soil showing distinct layers of soil. 
(ii)Trees help in making the soil as well as protecting it. How? (2 points) 
Q.24 (i) Why oils, fats and paints should not be discharged in the household drains?   
            (5) 
(ii)Which gas is produced during anaerobic decomposition of sludge? 
(iii)Give the chemical name and formula of the product formed when magnesium       
       ribbon is burnt in air.   
(iv)Classify the following changes into physical and chemical changes: 
(a) clothes being ironed  (b) burning of petrol 
(v) How can you show that iron is more reactive than copper? 
 
      
     Section- C [27] (BIOLOGY) 
Q.25 Name the organ of respiration and the type of excretory waste produced by fish.  
            (1) 
Q.26 Which  scientist was called the „circulator??        (1) 
Q.27 (i) The cells which prevent blood- loss during injury are called ___________. (1) 
(ii)The pulse is observed in _____________.  
 
Page 4


                                                      
                                 
  
 
 
Section- A (PHYSICS) 
Q.1. Fill in the blanks:-           (1) 
(vii) Moisture laden winds are called _____________. 
(viii) The central calm area of a cyclone is known as _____________. 
Q.2. A man standing close and in front of a spherical mirror finds image having a small 
head and a fat body. What is the shape of       (1) 
(i) top part of the mirror? 
(ii) bottom part of the mirror? 
 
Q.3. Which effect of current does the filament in an electric bulb utilize?  (1) 
 
Q.4. Complete the analog-           (2) 
(i) speed of vehicles : speedometer :: speed of wind : _____________. 
(ii) length : metre :: current : ____________.   
Q.5. Differentiate between converging and diverging mirrors. (Give two points each) 
            (2) 
Q.6. Name a safety device based on the heating effect of current. How does it work?  
            (2) 
Q.7. How are thunderstorms caused?        (2) 
Q.8. Draw a circuit diagram of a dry cell connected to a bulb through a switch. Mark the 
negative and positive terminals of the cell and the direction of flow of current in the 
diagram.            (2) 
 
 
Q.9. Give reason, why-          (3) 
(i) When we blow over a paper strip, it blows upwards. 
(ii) Concave mirrors are used as shaving mirrors. 
 
Q.10. (i)  Observe the diagram and write the aim of the experiment?     (1 + 2= 3) 
 
(ii) Why does the balloon inflate when  
       it is kept under hot water? 
 
 
                                                      
                                 
  
Q.11. Write down three precautions which one must take in advance to tackle with the 
problems created by a cyclone.             (3) 
 
Q.12.             (1+2+2= 5)  
 
(i) What is the underlying principle behind the 
working of an electric bell? 
(ii) Identify „A? and „B? and tell their functions. 
(iii) Why do we prefer to use an electromagnet instead 
of a permanent magnet in an electric bulb? 
 
Section- B (CHEMISTRY) 
 
Q.13 The process of preparing pure crystals of a substance from its concentrated solution 
 is               (1) 
(i) Galvanization  
(ii) Rusting 
(iii) Crystallization 
(iv) Weathering 
Q.14 Clean water fit for drinking is         (1) 
(i) Potable water 
(ii) Clarified water 
(iii) Treated water 
(iv) None of above 
Q.15 The product formed when a zinc piece is introduced in a solution of copper 
sulphate is            (1) 
(i) Ammonium sulphate 
(ii) Copper sulphate 
(iii) Zinc sulphate 
(iv) Zinc hydroxide 
Q.16 Which of these soil particles are largest in size       (1) 
(i) Sand  
(ii) Clay 
(iii) Silt 
(iv) Humus 
Q.17 (i) State two conditions necessary for rusting.         (1 +1= 2) 
 (ii)Give the word equation for the chemical reaction involved in the process of  
  rusting. 
Q.18 Label the diagram given below:          (2) 
  
  
 
 
  
                                                      
                                 
  
 
Q.19 Define the following:         (2) 
(i) Sewerage  (ii) Sewers  
 
Q.20 Calculate the percentage of water absorbed by 90 gm of soil sample when the initial 
volume of water taken is 60 ml and the final volume of water is 30 ml in the 
measuring cylinder.          (2) 
 
Q.21 (i) Complete the following word equation:      (3) 
(a) Magnesium + Oxygen        ___________ 
(b) Calcium hydroxide + Carbon dioxide    __________ + __________ 
 (ii)Arrange clayey, sandy and loamy soils in the increasing order of their percentage 
  of water absorbed. 
   
Q.22 (i) What is the function of bar screens?       (3) 
(ii)Expand STP. 
(iii)What is activated sludge? 
(iv)Which horizon of soil is the home for soil organisms? 
Q.23 (i) Name the following:            (1 + 2= 3) 
(a) Breaking down of rocks by the climatic changes. 
(b) A section of soil showing distinct layers of soil. 
(ii)Trees help in making the soil as well as protecting it. How? (2 points) 
Q.24 (i) Why oils, fats and paints should not be discharged in the household drains?   
            (5) 
(ii)Which gas is produced during anaerobic decomposition of sludge? 
(iii)Give the chemical name and formula of the product formed when magnesium       
       ribbon is burnt in air.   
(iv)Classify the following changes into physical and chemical changes: 
(a) clothes being ironed  (b) burning of petrol 
(v) How can you show that iron is more reactive than copper? 
 
      
     Section- C [27] (BIOLOGY) 
Q.25 Name the organ of respiration and the type of excretory waste produced by fish.  
            (1) 
Q.26 Which  scientist was called the „circulator??        (1) 
Q.27 (i) The cells which prevent blood- loss during injury are called ___________. (1) 
(ii)The pulse is observed in _____________.  
 
                                                      
                                 
  
Q.28 (i) Root : Sweet Potato :: Leaf buds : _________________.     (1) 
(ii)Yeast : Budding :: ________________ : Fragmentation.  
Q.29 Correct the statement:          
 (1) 
(i) Sepals, Petals and Ovary fall off after fertilization. 
(ii) Each detached part of Rose plant develop into new plant. 
Q.30 How is dispersal of seeds beneficial to plants (1 point).    (1) 
Q.31 Observe this figure and answer the question given       
(2) 
(i) The arrow marks are showing movement of which substance? 
(ii) In which direction is this substance moving? 
(iii) Name the tissue in which the substance is moving. 
(iv) Vascular tissue is made of the above tissue and __________. 
 
 
Q.32 On exhaling into a particular solution, it turned milky.     (2) 
(i) Name the solution and the gas which turned it milky. 
(ii) Why do plants die when they are over watered? 
Q.33 Explain how forests help to prevent.       (2) 
(i) Soil erosion (ii) Global warming 
Q.34 (i) Flowers  with both stamen or pistil are called _____________.   (2) 
(ii)Which type(s) of pollination will they show? 
(iii)Give one example of such a flower. 
 
Q.35 Observe the following figures:        (2) 
 
 
 
 
(i) Which type of asexual reproduction is shown by Fig. I and Fig. II? 
  
(ii) What is the name given to part A and part B in above figures. 
 
Q.36 What are decomposers? Give two examples of decomposers.   (2) 
Q.37 (i) The right ventricle contains ___________ rich blood and sends it out through a      
     blood vessel called ___________.       (3) 
 
(ii)What is present between left and right side of the Heart and what is its function? 
(iii)Exchange of materials between blood and cells occur through ___________.  
       (veins/ capillaries)  
Page 5


                                                      
                                 
  
 
 
Section- A (PHYSICS) 
Q.1. Fill in the blanks:-           (1) 
(vii) Moisture laden winds are called _____________. 
(viii) The central calm area of a cyclone is known as _____________. 
Q.2. A man standing close and in front of a spherical mirror finds image having a small 
head and a fat body. What is the shape of       (1) 
(i) top part of the mirror? 
(ii) bottom part of the mirror? 
 
Q.3. Which effect of current does the filament in an electric bulb utilize?  (1) 
 
Q.4. Complete the analog-           (2) 
(i) speed of vehicles : speedometer :: speed of wind : _____________. 
(ii) length : metre :: current : ____________.   
Q.5. Differentiate between converging and diverging mirrors. (Give two points each) 
            (2) 
Q.6. Name a safety device based on the heating effect of current. How does it work?  
            (2) 
Q.7. How are thunderstorms caused?        (2) 
Q.8. Draw a circuit diagram of a dry cell connected to a bulb through a switch. Mark the 
negative and positive terminals of the cell and the direction of flow of current in the 
diagram.            (2) 
 
 
Q.9. Give reason, why-          (3) 
(i) When we blow over a paper strip, it blows upwards. 
(ii) Concave mirrors are used as shaving mirrors. 
 
Q.10. (i)  Observe the diagram and write the aim of the experiment?     (1 + 2= 3) 
 
(ii) Why does the balloon inflate when  
       it is kept under hot water? 
 
 
                                                      
                                 
  
Q.11. Write down three precautions which one must take in advance to tackle with the 
problems created by a cyclone.             (3) 
 
Q.12.             (1+2+2= 5)  
 
(i) What is the underlying principle behind the 
working of an electric bell? 
(ii) Identify „A? and „B? and tell their functions. 
(iii) Why do we prefer to use an electromagnet instead 
of a permanent magnet in an electric bulb? 
 
Section- B (CHEMISTRY) 
 
Q.13 The process of preparing pure crystals of a substance from its concentrated solution 
 is               (1) 
(i) Galvanization  
(ii) Rusting 
(iii) Crystallization 
(iv) Weathering 
Q.14 Clean water fit for drinking is         (1) 
(i) Potable water 
(ii) Clarified water 
(iii) Treated water 
(iv) None of above 
Q.15 The product formed when a zinc piece is introduced in a solution of copper 
sulphate is            (1) 
(i) Ammonium sulphate 
(ii) Copper sulphate 
(iii) Zinc sulphate 
(iv) Zinc hydroxide 
Q.16 Which of these soil particles are largest in size       (1) 
(i) Sand  
(ii) Clay 
(iii) Silt 
(iv) Humus 
Q.17 (i) State two conditions necessary for rusting.         (1 +1= 2) 
 (ii)Give the word equation for the chemical reaction involved in the process of  
  rusting. 
Q.18 Label the diagram given below:          (2) 
  
  
 
 
  
                                                      
                                 
  
 
Q.19 Define the following:         (2) 
(i) Sewerage  (ii) Sewers  
 
Q.20 Calculate the percentage of water absorbed by 90 gm of soil sample when the initial 
volume of water taken is 60 ml and the final volume of water is 30 ml in the 
measuring cylinder.          (2) 
 
Q.21 (i) Complete the following word equation:      (3) 
(a) Magnesium + Oxygen        ___________ 
(b) Calcium hydroxide + Carbon dioxide    __________ + __________ 
 (ii)Arrange clayey, sandy and loamy soils in the increasing order of their percentage 
  of water absorbed. 
   
Q.22 (i) What is the function of bar screens?       (3) 
(ii)Expand STP. 
(iii)What is activated sludge? 
(iv)Which horizon of soil is the home for soil organisms? 
Q.23 (i) Name the following:            (1 + 2= 3) 
(a) Breaking down of rocks by the climatic changes. 
(b) A section of soil showing distinct layers of soil. 
(ii)Trees help in making the soil as well as protecting it. How? (2 points) 
Q.24 (i) Why oils, fats and paints should not be discharged in the household drains?   
            (5) 
(ii)Which gas is produced during anaerobic decomposition of sludge? 
(iii)Give the chemical name and formula of the product formed when magnesium       
       ribbon is burnt in air.   
(iv)Classify the following changes into physical and chemical changes: 
(a) clothes being ironed  (b) burning of petrol 
(v) How can you show that iron is more reactive than copper? 
 
      
     Section- C [27] (BIOLOGY) 
Q.25 Name the organ of respiration and the type of excretory waste produced by fish.  
            (1) 
Q.26 Which  scientist was called the „circulator??        (1) 
Q.27 (i) The cells which prevent blood- loss during injury are called ___________. (1) 
(ii)The pulse is observed in _____________.  
 
                                                      
                                 
  
Q.28 (i) Root : Sweet Potato :: Leaf buds : _________________.     (1) 
(ii)Yeast : Budding :: ________________ : Fragmentation.  
Q.29 Correct the statement:          
 (1) 
(i) Sepals, Petals and Ovary fall off after fertilization. 
(ii) Each detached part of Rose plant develop into new plant. 
Q.30 How is dispersal of seeds beneficial to plants (1 point).    (1) 
Q.31 Observe this figure and answer the question given       
(2) 
(i) The arrow marks are showing movement of which substance? 
(ii) In which direction is this substance moving? 
(iii) Name the tissue in which the substance is moving. 
(iv) Vascular tissue is made of the above tissue and __________. 
 
 
Q.32 On exhaling into a particular solution, it turned milky.     (2) 
(i) Name the solution and the gas which turned it milky. 
(ii) Why do plants die when they are over watered? 
Q.33 Explain how forests help to prevent.       (2) 
(i) Soil erosion (ii) Global warming 
Q.34 (i) Flowers  with both stamen or pistil are called _____________.   (2) 
(ii)Which type(s) of pollination will they show? 
(iii)Give one example of such a flower. 
 
Q.35 Observe the following figures:        (2) 
 
 
 
 
(i) Which type of asexual reproduction is shown by Fig. I and Fig. II? 
  
(ii) What is the name given to part A and part B in above figures. 
 
Q.36 What are decomposers? Give two examples of decomposers.   (2) 
Q.37 (i) The right ventricle contains ___________ rich blood and sends it out through a      
     blood vessel called ___________.       (3) 
 
(ii)What is present between left and right side of the Heart and what is its function? 
(iii)Exchange of materials between blood and cells occur through ___________.  
       (veins/ capillaries)  
                                                      
                                 
  
Q.38 Choose the correct option:          (3) 
(i) Ovary contains ____________. 
(a) Male gamete 
(b) Female gamete 
(c) Pollen grain 
(d) Ovule 
(ii) A fusion of male and female gamete occurs during 
(a) Sexual reproduction 
(b) Vegetative propogation 
(c) Spore formation 
(d) Budding 
(iii) The Reproductive part of plant is 
(a) Root 
(b) Stem 
(c) Leaf 
(d) Flower 
(iv) The part of the stem at which leaf arises is 
(a) Leaf axil 
(b) Axillary  bud 
(c) Node 
(d) Internode 
(v) The branchy part of a tree above the stem is called 
(a) Canopy 
(b) Crown 
(c) Understorey 
(d) Roofcover 
(vi) The food chain begins with 
(e) Herbivores 
(f) Carnivores 
(g) Green plants 
(h) Omnivore 
 
Q.39 (i) Draw schematic diagram of blood circulation in humans.     (3) 
(ii) Label Lungs and Pulmonary vein in the above diagram.   
(iii)Name the following parts of human excretory system. 
(a) The part which stores the urine. 
(b) The part which contain tiny filtering units called nephrons. 
 
============================================== 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
============================================== 
 
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FAQs on Class 7 Science: Sample Question Paper - 7 - Science Class 7

1. What is the scientific method?
Ans. The scientific method is a systematic approach used by scientists to investigate and understand natural phenomena. It involves making observations, formulating a hypothesis, conducting experiments, collecting data, analyzing the results, and drawing conclusions. This method helps scientists to ensure their research is objective, reliable, and reproducible.
2. What is the importance of conducting experiments in science?
Ans. Conducting experiments in science is important as it allows scientists to test their hypotheses and gather empirical evidence to support or refute them. Experiments help scientists to understand the cause-and-effect relationships between variables, validate theories, and make accurate predictions. They also provide a basis for developing new technologies and advancing scientific knowledge.
3. How are variables identified and controlled in an experiment?
Ans. Variables in an experiment are identified as independent, dependent, and controlled variables. The independent variable is manipulated by the experimenter to observe its effect on the dependent variable. The dependent variable is the variable being measured or observed. Controlled variables are kept constant to ensure that only the independent variable influences the dependent variable. By controlling variables, scientists can isolate and study the specific effects of the independent variable.
4. Why is it important to analyze and interpret data in scientific research?
Ans. Analyzing and interpreting data is crucial in scientific research as it allows scientists to draw meaningful conclusions and make informed decisions. By analyzing data, scientists can identify patterns, trends, and relationships, which helps them understand the underlying mechanisms and phenomena. Data analysis also helps in identifying any errors or limitations in the experiment and provides a basis for further research and hypothesis refinement.
5. What is the role of peer review in scientific research?
Ans. Peer review plays a vital role in scientific research. It is a process in which experts in the same field evaluate and critique the research conducted by their peers. Peer review ensures the quality and validity of scientific findings by subjecting them to scrutiny and feedback from independent experts. It helps to identify any flaws, biases, or errors in the research methodology, data analysis, or interpretation. Peer-reviewed research is considered more reliable and trustworthy by the scientific community.
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