Class 10 Science - Previous Year Paper SA 1 Set-4 2015

 Page 1


 
 
 
  
 
SUMMATIVE ASSESSMENT-1 2015-16 
Subject –Science 
Class – X 
 
 Time allowed: 3 hours                                Maximum Marks: 90 
 
General Instructions: 
1. This question paper comprises of two sections A and B. you are to attempt both the sections. 
2. All questions are compulsory 
3. all questions of section A and all question of section Bare to be aattmepted separately. 
4. Questions number 1 to 3 in section A are one mark Question. These are to be answered in one word 
or in onr sentence. 
5. Questions number 4 to 6 in section a are two marks question . these are to be answered in about 30 
words each. 
6 Questions number 7 to 18 in section A are three  marks question . these are to be answered in about 
50 words each. 
7. Questions number 19 to 24 in section A are five  marks question . these are to be answered in about    
70 words each. 
8. Questions number 25 to 33 in section B are five multiple choice (MCQ) question based on practical 
skills . Each question is a one marks question. You are to select one most appropriate rwsonse out of the 
four provided to you. 
9. Questions number 34 to 36 in section B are two  marks question based on practical skills. These are 
to be answered in brief. 
 
SECTION-A 
1. Complete and balance the equation:-Zn +
3
a gNO ? ? ? ? ? ? ? 
2. Why the solar cooker box is painted black from inside and covered with a glass sheet ? 
3. What is the colour of  
a) Live wire 
b) Neutral wire 
 
4. a)show the formation of 
2
N a O and 
2
M gC l by the transfer of electrons. 
b)why don ionic compounds have high melting points? 
 
5. a) Name the sensory receptors found in the nose and tongue. 
b) Name the hormones responsible for the :- 
1. Phototropic movement of plant. 
2. Promoting cell division in plants. 
6. Give reason why:- 
a)  An aqueous solution of acid conduct electricity? 
Page 2


 
 
 
  
 
SUMMATIVE ASSESSMENT-1 2015-16 
Subject –Science 
Class – X 
 
 Time allowed: 3 hours                                Maximum Marks: 90 
 
General Instructions: 
1. This question paper comprises of two sections A and B. you are to attempt both the sections. 
2. All questions are compulsory 
3. all questions of section A and all question of section Bare to be aattmepted separately. 
4. Questions number 1 to 3 in section A are one mark Question. These are to be answered in one word 
or in onr sentence. 
5. Questions number 4 to 6 in section a are two marks question . these are to be answered in about 30 
words each. 
6 Questions number 7 to 18 in section A are three  marks question . these are to be answered in about 
50 words each. 
7. Questions number 19 to 24 in section A are five  marks question . these are to be answered in about    
70 words each. 
8. Questions number 25 to 33 in section B are five multiple choice (MCQ) question based on practical 
skills . Each question is a one marks question. You are to select one most appropriate rwsonse out of the 
four provided to you. 
9. Questions number 34 to 36 in section B are two  marks question based on practical skills. These are 
to be answered in brief. 
 
SECTION-A 
1. Complete and balance the equation:-Zn +
3
a gNO ? ? ? ? ? ? ? 
2. Why the solar cooker box is painted black from inside and covered with a glass sheet ? 
3. What is the colour of  
a) Live wire 
b) Neutral wire 
 
4. a)show the formation of 
2
N a O and 
2
M gC l by the transfer of electrons. 
b)why don ionic compounds have high melting points? 
 
5. a) Name the sensory receptors found in the nose and tongue. 
b) Name the hormones responsible for the :- 
1. Phototropic movement of plant. 
2. Promoting cell division in plants. 
6. Give reason why:- 
a)  An aqueous solution of acid conduct electricity? 
 
 
 
  
 
b) Water shouldn’t be added drop wise to conc. 
2 4
H S O ? 
7. A piece of wire having resistance ‘R’ is cut in to four equal parts  
a) How the resistance of each part be compared with the original substance. 
b) If all the four parts are connected in parallel .How the joint resistance be compared 
with resistance of original wire? 
 
8. A coil of copper wire is connected to galvanometer. What would happen if a bar magnet is. 
a) pushed into the coil with its north pole entering first? 
b) held at rest inside the coil? 
c) pulled out again? 
 
9. Write any three differences between Renewable and Non –Renewable resources of energy. 
10. An electric heater draws a current of 10 A from a 220V supply. What will be the cost of using 
the heater for 5 hrs. Every day for 30 days if the cost of 1 unit (1kwhr) is Rs. 5.20? 
11. The wire in figure below is being moved downwards through the magnetic field so as to 
produce induced current. 
 
What would be the effect of: 
a) Moving the wire at higher speed? 
b) Moving the wire upward rather than downward? 
c) Using the stronger magnet? 
 
12. a) what is bio gas? Write the major components of bio gas. 
     b) mention any two uses of bio gas 
13. Equal lengths of magnesium, ribbon are taken in the test tube A and B. Equal amount &same 
concentration of Hydrochloric acid (HCI) and acetic acid 
3
( C H C O OH ) ? is added to test tube A & B 
respectively. In which test tube fussing occur more vigorously and why? 
14. Write equations for the reactions of :- 
a) Iron with steam  
b) Calcium with water  
c) Potassium with water 
Page 3


 
 
 
  
 
SUMMATIVE ASSESSMENT-1 2015-16 
Subject –Science 
Class – X 
 
 Time allowed: 3 hours                                Maximum Marks: 90 
 
General Instructions: 
1. This question paper comprises of two sections A and B. you are to attempt both the sections. 
2. All questions are compulsory 
3. all questions of section A and all question of section Bare to be aattmepted separately. 
4. Questions number 1 to 3 in section A are one mark Question. These are to be answered in one word 
or in onr sentence. 
5. Questions number 4 to 6 in section a are two marks question . these are to be answered in about 30 
words each. 
6 Questions number 7 to 18 in section A are three  marks question . these are to be answered in about 
50 words each. 
7. Questions number 19 to 24 in section A are five  marks question . these are to be answered in about    
70 words each. 
8. Questions number 25 to 33 in section B are five multiple choice (MCQ) question based on practical 
skills . Each question is a one marks question. You are to select one most appropriate rwsonse out of the 
four provided to you. 
9. Questions number 34 to 36 in section B are two  marks question based on practical skills. These are 
to be answered in brief. 
 
SECTION-A 
1. Complete and balance the equation:-Zn +
3
a gNO ? ? ? ? ? ? ? 
2. Why the solar cooker box is painted black from inside and covered with a glass sheet ? 
3. What is the colour of  
a) Live wire 
b) Neutral wire 
 
4. a)show the formation of 
2
N a O and 
2
M gC l by the transfer of electrons. 
b)why don ionic compounds have high melting points? 
 
5. a) Name the sensory receptors found in the nose and tongue. 
b) Name the hormones responsible for the :- 
1. Phototropic movement of plant. 
2. Promoting cell division in plants. 
6. Give reason why:- 
a)  An aqueous solution of acid conduct electricity? 
 
 
 
  
 
b) Water shouldn’t be added drop wise to conc. 
2 4
H S O ? 
7. A piece of wire having resistance ‘R’ is cut in to four equal parts  
a) How the resistance of each part be compared with the original substance. 
b) If all the four parts are connected in parallel .How the joint resistance be compared 
with resistance of original wire? 
 
8. A coil of copper wire is connected to galvanometer. What would happen if a bar magnet is. 
a) pushed into the coil with its north pole entering first? 
b) held at rest inside the coil? 
c) pulled out again? 
 
9. Write any three differences between Renewable and Non –Renewable resources of energy. 
10. An electric heater draws a current of 10 A from a 220V supply. What will be the cost of using 
the heater for 5 hrs. Every day for 30 days if the cost of 1 unit (1kwhr) is Rs. 5.20? 
11. The wire in figure below is being moved downwards through the magnetic field so as to 
produce induced current. 
 
What would be the effect of: 
a) Moving the wire at higher speed? 
b) Moving the wire upward rather than downward? 
c) Using the stronger magnet? 
 
12. a) what is bio gas? Write the major components of bio gas. 
     b) mention any two uses of bio gas 
13. Equal lengths of magnesium, ribbon are taken in the test tube A and B. Equal amount &same 
concentration of Hydrochloric acid (HCI) and acetic acid 
3
( C H C O OH ) ? is added to test tube A & B 
respectively. In which test tube fussing occur more vigorously and why? 
14. Write equations for the reactions of :- 
a) Iron with steam  
b) Calcium with water  
c) Potassium with water 
 
 
 
  
 
15. Draw and Label the following parts of human excretory system. 
a) kidney 
b) left ureter 
c) Urinary bladder 
d) Urethra 
16. Give examples of three acids which are present in the food items that we eat daily. What 
precautions would you take while storing them? 
17. Write the balanced equation and identify the type of reaction in each case:- 
a) Potassium bromide(aq)+Barium iodide(aq) ? potassium iodide (aq) + Barium bromide(s) 
b) Hydrogen(g) +chlorine (g) ? Hydrogen chloride (g) 
c) Magnesium(s) + Hydrochloric acid (aq)
 
? Magnesium chloride (aq) + Hydrogen(g) 
18. What are the different ways in which glucose is oxidized to pride energy in various organisms? 
19. What is reflex action? Explain with the help of examples. 
20. a) Name the law which relates the current in the conductor through the potential difference 
across its ends. 
b) What happens to the resistance as conductor is made thicker? 
c) If the length if a wire is doubled but taking more of wire what happens to its resistance. 
d) On what factor the resistance of a conductor depends? 
21.a) What is an electromagnet? 
   b) Draw a labeled diagram to show how an electromagnet is made . 
  c) What is the purpose of soft iron core used in making an electromagnet? 
22. a) Name two metals which from aphiteric oxide . 
b) Arrnage the following metals accorfing to their reactivity, placing the most reactive meatl first: 
Magnesium ,copper ,iron, sodium , zinc, lead and calcium. 
c) what do mea by metals are malleable and ductile ?explain with example. 
23. a) Draw the diagram of alimentary canl if man and label the following parts”– Oesophagus, 
stomach, pancreas, small intestine 
b)where do carbohydrates proteins and fats get digested in human? 
24. a) what is the common name of compound 
a 2
C O C I ? 
Page 4


 
 
 
  
 
SUMMATIVE ASSESSMENT-1 2015-16 
Subject –Science 
Class – X 
 
 Time allowed: 3 hours                                Maximum Marks: 90 
 
General Instructions: 
1. This question paper comprises of two sections A and B. you are to attempt both the sections. 
2. All questions are compulsory 
3. all questions of section A and all question of section Bare to be aattmepted separately. 
4. Questions number 1 to 3 in section A are one mark Question. These are to be answered in one word 
or in onr sentence. 
5. Questions number 4 to 6 in section a are two marks question . these are to be answered in about 30 
words each. 
6 Questions number 7 to 18 in section A are three  marks question . these are to be answered in about 
50 words each. 
7. Questions number 19 to 24 in section A are five  marks question . these are to be answered in about    
70 words each. 
8. Questions number 25 to 33 in section B are five multiple choice (MCQ) question based on practical 
skills . Each question is a one marks question. You are to select one most appropriate rwsonse out of the 
four provided to you. 
9. Questions number 34 to 36 in section B are two  marks question based on practical skills. These are 
to be answered in brief. 
 
SECTION-A 
1. Complete and balance the equation:-Zn +
3
a gNO ? ? ? ? ? ? ? 
2. Why the solar cooker box is painted black from inside and covered with a glass sheet ? 
3. What is the colour of  
a) Live wire 
b) Neutral wire 
 
4. a)show the formation of 
2
N a O and 
2
M gC l by the transfer of electrons. 
b)why don ionic compounds have high melting points? 
 
5. a) Name the sensory receptors found in the nose and tongue. 
b) Name the hormones responsible for the :- 
1. Phototropic movement of plant. 
2. Promoting cell division in plants. 
6. Give reason why:- 
a)  An aqueous solution of acid conduct electricity? 
 
 
 
  
 
b) Water shouldn’t be added drop wise to conc. 
2 4
H S O ? 
7. A piece of wire having resistance ‘R’ is cut in to four equal parts  
a) How the resistance of each part be compared with the original substance. 
b) If all the four parts are connected in parallel .How the joint resistance be compared 
with resistance of original wire? 
 
8. A coil of copper wire is connected to galvanometer. What would happen if a bar magnet is. 
a) pushed into the coil with its north pole entering first? 
b) held at rest inside the coil? 
c) pulled out again? 
 
9. Write any three differences between Renewable and Non –Renewable resources of energy. 
10. An electric heater draws a current of 10 A from a 220V supply. What will be the cost of using 
the heater for 5 hrs. Every day for 30 days if the cost of 1 unit (1kwhr) is Rs. 5.20? 
11. The wire in figure below is being moved downwards through the magnetic field so as to 
produce induced current. 
 
What would be the effect of: 
a) Moving the wire at higher speed? 
b) Moving the wire upward rather than downward? 
c) Using the stronger magnet? 
 
12. a) what is bio gas? Write the major components of bio gas. 
     b) mention any two uses of bio gas 
13. Equal lengths of magnesium, ribbon are taken in the test tube A and B. Equal amount &same 
concentration of Hydrochloric acid (HCI) and acetic acid 
3
( C H C O OH ) ? is added to test tube A & B 
respectively. In which test tube fussing occur more vigorously and why? 
14. Write equations for the reactions of :- 
a) Iron with steam  
b) Calcium with water  
c) Potassium with water 
 
 
 
  
 
15. Draw and Label the following parts of human excretory system. 
a) kidney 
b) left ureter 
c) Urinary bladder 
d) Urethra 
16. Give examples of three acids which are present in the food items that we eat daily. What 
precautions would you take while storing them? 
17. Write the balanced equation and identify the type of reaction in each case:- 
a) Potassium bromide(aq)+Barium iodide(aq) ? potassium iodide (aq) + Barium bromide(s) 
b) Hydrogen(g) +chlorine (g) ? Hydrogen chloride (g) 
c) Magnesium(s) + Hydrochloric acid (aq)
 
? Magnesium chloride (aq) + Hydrogen(g) 
18. What are the different ways in which glucose is oxidized to pride energy in various organisms? 
19. What is reflex action? Explain with the help of examples. 
20. a) Name the law which relates the current in the conductor through the potential difference 
across its ends. 
b) What happens to the resistance as conductor is made thicker? 
c) If the length if a wire is doubled but taking more of wire what happens to its resistance. 
d) On what factor the resistance of a conductor depends? 
21.a) What is an electromagnet? 
   b) Draw a labeled diagram to show how an electromagnet is made . 
  c) What is the purpose of soft iron core used in making an electromagnet? 
22. a) Name two metals which from aphiteric oxide . 
b) Arrnage the following metals accorfing to their reactivity, placing the most reactive meatl first: 
Magnesium ,copper ,iron, sodium , zinc, lead and calcium. 
c) what do mea by metals are malleable and ductile ?explain with example. 
23. a) Draw the diagram of alimentary canl if man and label the following parts”– Oesophagus, 
stomach, pancreas, small intestine 
b)where do carbohydrates proteins and fats get digested in human? 
24. a) what is the common name of compound 
a 2
C O C I ? 
 
 
 
  
 
       b)what will happen when a solution of sodium hydrogen carbonate is heated ?Give the equation 
of the reaction involved. 
c) name the sodium compound which is used for softening hard water. 
d) write an equation to show the reaction between the plaster of paris and water. 
SECTION-B 
25.  The substance having infinitely high electrical resistance is called:- 
   a) Conductor 
   b)Resistor 
  c) Super conductore 
   d) Insulator 
26. Which of the following is not a thermal decomposition reaction 
a) 
1
n
? 
2 2 2
h O 2 H O ? ? 
b)
4 2 2 3
2 Fe SO Fe O 3 S O S O ? ? ? 
c)
3 2
Z nC O Z nO C O ? ? 
d)
3 2
2 KC I O 2 K C I 3 O ? ? 
27. Gaseous exchange in plants is facilitated by:- 
a)  Chloroplast 
b) Roots 
c) Stem 
d) Stomata 
28. Nutrients are transacted in plants through:- 
a) Xylem tracheids 
b) Phloem Sieve tubes 
c) Xylem Vessels 
d) Phloem Companion cells 
29. When the area of cross section of a conductor is doubled its resistance becomes:- 
a) Doubles 
b) Half 
Page 5


 
 
 
  
 
SUMMATIVE ASSESSMENT-1 2015-16 
Subject –Science 
Class – X 
 
 Time allowed: 3 hours                                Maximum Marks: 90 
 
General Instructions: 
1. This question paper comprises of two sections A and B. you are to attempt both the sections. 
2. All questions are compulsory 
3. all questions of section A and all question of section Bare to be aattmepted separately. 
4. Questions number 1 to 3 in section A are one mark Question. These are to be answered in one word 
or in onr sentence. 
5. Questions number 4 to 6 in section a are two marks question . these are to be answered in about 30 
words each. 
6 Questions number 7 to 18 in section A are three  marks question . these are to be answered in about 
50 words each. 
7. Questions number 19 to 24 in section A are five  marks question . these are to be answered in about    
70 words each. 
8. Questions number 25 to 33 in section B are five multiple choice (MCQ) question based on practical 
skills . Each question is a one marks question. You are to select one most appropriate rwsonse out of the 
four provided to you. 
9. Questions number 34 to 36 in section B are two  marks question based on practical skills. These are 
to be answered in brief. 
 
SECTION-A 
1. Complete and balance the equation:-Zn +
3
a gNO ? ? ? ? ? ? ? 
2. Why the solar cooker box is painted black from inside and covered with a glass sheet ? 
3. What is the colour of  
a) Live wire 
b) Neutral wire 
 
4. a)show the formation of 
2
N a O and 
2
M gC l by the transfer of electrons. 
b)why don ionic compounds have high melting points? 
 
5. a) Name the sensory receptors found in the nose and tongue. 
b) Name the hormones responsible for the :- 
1. Phototropic movement of plant. 
2. Promoting cell division in plants. 
6. Give reason why:- 
a)  An aqueous solution of acid conduct electricity? 
 
 
 
  
 
b) Water shouldn’t be added drop wise to conc. 
2 4
H S O ? 
7. A piece of wire having resistance ‘R’ is cut in to four equal parts  
a) How the resistance of each part be compared with the original substance. 
b) If all the four parts are connected in parallel .How the joint resistance be compared 
with resistance of original wire? 
 
8. A coil of copper wire is connected to galvanometer. What would happen if a bar magnet is. 
a) pushed into the coil with its north pole entering first? 
b) held at rest inside the coil? 
c) pulled out again? 
 
9. Write any three differences between Renewable and Non –Renewable resources of energy. 
10. An electric heater draws a current of 10 A from a 220V supply. What will be the cost of using 
the heater for 5 hrs. Every day for 30 days if the cost of 1 unit (1kwhr) is Rs. 5.20? 
11. The wire in figure below is being moved downwards through the magnetic field so as to 
produce induced current. 
 
What would be the effect of: 
a) Moving the wire at higher speed? 
b) Moving the wire upward rather than downward? 
c) Using the stronger magnet? 
 
12. a) what is bio gas? Write the major components of bio gas. 
     b) mention any two uses of bio gas 
13. Equal lengths of magnesium, ribbon are taken in the test tube A and B. Equal amount &same 
concentration of Hydrochloric acid (HCI) and acetic acid 
3
( C H C O OH ) ? is added to test tube A & B 
respectively. In which test tube fussing occur more vigorously and why? 
14. Write equations for the reactions of :- 
a) Iron with steam  
b) Calcium with water  
c) Potassium with water 
 
 
 
  
 
15. Draw and Label the following parts of human excretory system. 
a) kidney 
b) left ureter 
c) Urinary bladder 
d) Urethra 
16. Give examples of three acids which are present in the food items that we eat daily. What 
precautions would you take while storing them? 
17. Write the balanced equation and identify the type of reaction in each case:- 
a) Potassium bromide(aq)+Barium iodide(aq) ? potassium iodide (aq) + Barium bromide(s) 
b) Hydrogen(g) +chlorine (g) ? Hydrogen chloride (g) 
c) Magnesium(s) + Hydrochloric acid (aq)
 
? Magnesium chloride (aq) + Hydrogen(g) 
18. What are the different ways in which glucose is oxidized to pride energy in various organisms? 
19. What is reflex action? Explain with the help of examples. 
20. a) Name the law which relates the current in the conductor through the potential difference 
across its ends. 
b) What happens to the resistance as conductor is made thicker? 
c) If the length if a wire is doubled but taking more of wire what happens to its resistance. 
d) On what factor the resistance of a conductor depends? 
21.a) What is an electromagnet? 
   b) Draw a labeled diagram to show how an electromagnet is made . 
  c) What is the purpose of soft iron core used in making an electromagnet? 
22. a) Name two metals which from aphiteric oxide . 
b) Arrnage the following metals accorfing to their reactivity, placing the most reactive meatl first: 
Magnesium ,copper ,iron, sodium , zinc, lead and calcium. 
c) what do mea by metals are malleable and ductile ?explain with example. 
23. a) Draw the diagram of alimentary canl if man and label the following parts”– Oesophagus, 
stomach, pancreas, small intestine 
b)where do carbohydrates proteins and fats get digested in human? 
24. a) what is the common name of compound 
a 2
C O C I ? 
 
 
 
  
 
       b)what will happen when a solution of sodium hydrogen carbonate is heated ?Give the equation 
of the reaction involved. 
c) name the sodium compound which is used for softening hard water. 
d) write an equation to show the reaction between the plaster of paris and water. 
SECTION-B 
25.  The substance having infinitely high electrical resistance is called:- 
   a) Conductor 
   b)Resistor 
  c) Super conductore 
   d) Insulator 
26. Which of the following is not a thermal decomposition reaction 
a) 
1
n
? 
2 2 2
h O 2 H O ? ? 
b)
4 2 2 3
2 Fe SO Fe O 3 S O S O ? ? ? 
c)
3 2
Z nC O Z nO C O ? ? 
d)
3 2
2 KC I O 2 K C I 3 O ? ? 
27. Gaseous exchange in plants is facilitated by:- 
a)  Chloroplast 
b) Roots 
c) Stem 
d) Stomata 
28. Nutrients are transacted in plants through:- 
a) Xylem tracheids 
b) Phloem Sieve tubes 
c) Xylem Vessels 
d) Phloem Companion cells 
29. When the area of cross section of a conductor is doubled its resistance becomes:- 
a) Doubles 
b) Half 
 
 
 
  
 
c) Four times 
d) One –fourth 
30. PH value less than 7 indicates that solution is :- 
a) Acidic  
b) Basic 
c) Neutral  
d) None of these 
31. Which of the following metals exist in theur native state in nature? 
i) Copper                                          ii) Gold 
iii) zinc                                              iv)Silver 
a) I & ii 
b) Ii &iii 
c) Ii & iv 
d) Iii &iv 
 
32. The autotrophic mode of nutrition requires:- 
a) Carbon dioxide and water 
b) Chlorophy 
c) sunlight 
d) All of these 
33. Which of the following is not attracted by a magnet:- 
a) Steel  
b) Cobalt 
c) Brass 
d) Nickel 
34. What happens when lead nitrate is heated ? Right balanced chemical equation and type of 
reaction. 
35. Draw the following electrical symbols used in electric circuits 
a)battery  
b) Plug key( closed 
c)Variable Resistance 
d)Electric bulb 
36. Draw a schematic diagram of a circuit consisting of battery of three cells of 2c each, a 5 ? 
resistor, an 8 ? resistor and a12 ? resistor and a plug key all connected in series.