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# Sample Paper - 8, Science, Class 7 Class 7 Notes | EduRev

## Class 7 : Sample Paper - 8, Science, Class 7 Class 7 Notes | EduRev

``` Page 1

Section- A (PHYSICS)
Q.1. Fill in the blanks:          (1)
(i) In vehicles, the device that measures distance covered is __________ and the
device that measures speed is ___________.
Q.2. Draw the distance time graph for a truck parked on the road.   (1)
Q.3. Answer in one word-           (2)
(i) Image that can be obtained on screen.
(ii) The method of heat transfer in a steel rod.
Q.4. What are the two laws of reflection?        (2)
Q.5. Convert 45ºC to ºF.         (2)

Q.6.    Identify and define the beam of light.      (2)

Q.7. (i) Define convection.        (1+2=3)
(ii)Find the time period when the pendulum completes 30 oscillations in 15
seconds.
Q.8. Explain with diagram, why sea breeze occurs during day time?    (1+2=3)
Q.9. Give reasons:           (1½+ 1½=3)
(i) Why do we use woollen clothes in winter?
(ii) Why does the word „PHYSICS? appear as „             ? when we look at it in a
mirror? Explain.
Q.10.              (3)

Identify and define A and B in the above diagram.
A
B
Page 2

Section- A (PHYSICS)
Q.1. Fill in the blanks:          (1)
(i) In vehicles, the device that measures distance covered is __________ and the
device that measures speed is ___________.
Q.2. Draw the distance time graph for a truck parked on the road.   (1)
Q.3. Answer in one word-           (2)
(i) Image that can be obtained on screen.
(ii) The method of heat transfer in a steel rod.
Q.4. What are the two laws of reflection?        (2)
Q.5. Convert 45ºC to ºF.         (2)

Q.6.    Identify and define the beam of light.      (2)

Q.7. (i) Define convection.        (1+2=3)
(ii)Find the time period when the pendulum completes 30 oscillations in 15
seconds.
Q.8. Explain with diagram, why sea breeze occurs during day time?    (1+2=3)
Q.9. Give reasons:           (1½+ 1½=3)
(i) Why do we use woollen clothes in winter?
(ii) Why does the word „PHYSICS? appear as „             ? when we look at it in a
mirror? Explain.
Q.10.              (3)

Identify and define A and B in the above diagram.
A
B

Q.11. (i) What is speed?              (1+3+1=5)
(ii) Plot the following distance time graph on the graph paper.

(iii)Which type of motion is represented by the above graph?

Section- B (CHEMISTRY)

Q.1 The process by which plants loose water is known as      (1)
(i) Perspiration
(ii) Transpiration
(iii) Infiltration
(iv) Condensation

Q.2 Which year is observed as the international year of freshwater     (1)
(i) 2005
(ii) 2004
(iii) 2003
(iv) 2007
Q.3 The chemical formula of potassium hydroxide is        (1)
(i) KOH
(ii) NaOH
(iii) Ca(OH)
2

(iv) Mg(OH)
2

Q.4 Which of these is not an Indian breed of sheep       (1)
(i) Lohi
(ii) Nali
(iii) Mooga
Q.5 Give one word:            (1)
(i) Traditional way of collecting water.
(ii) Water stored between layers of hard rock below water table.
Q.6 (i) Which liquid is an excellent solvent?       (½+1+½=2)
(ii)Mention the importance of this liquid in human body. (2 points)
(iii)What is the major cause of its depletion under the ground?
Q.7 Differentiate between rain water harvesting and drip irrigation. (2 points) (2)
Q.8 (i)If the soil is basic, organic matter is added to it-       (1+½=1½)
(a) Why is it done so?
Time (s) 2 4 6 8
Distance (m) 4 8 12 16
Page 3

Section- A (PHYSICS)
Q.1. Fill in the blanks:          (1)
(i) In vehicles, the device that measures distance covered is __________ and the
device that measures speed is ___________.
Q.2. Draw the distance time graph for a truck parked on the road.   (1)
Q.3. Answer in one word-           (2)
(i) Image that can be obtained on screen.
(ii) The method of heat transfer in a steel rod.
Q.4. What are the two laws of reflection?        (2)
Q.5. Convert 45ºC to ºF.         (2)

Q.6.    Identify and define the beam of light.      (2)

Q.7. (i) Define convection.        (1+2=3)
(ii)Find the time period when the pendulum completes 30 oscillations in 15
seconds.
Q.8. Explain with diagram, why sea breeze occurs during day time?    (1+2=3)
Q.9. Give reasons:           (1½+ 1½=3)
(i) Why do we use woollen clothes in winter?
(ii) Why does the word „PHYSICS? appear as „             ? when we look at it in a
mirror? Explain.
Q.10.              (3)

Identify and define A and B in the above diagram.
A
B

Q.11. (i) What is speed?              (1+3+1=5)
(ii) Plot the following distance time graph on the graph paper.

(iii)Which type of motion is represented by the above graph?

Section- B (CHEMISTRY)

Q.1 The process by which plants loose water is known as      (1)
(i) Perspiration
(ii) Transpiration
(iii) Infiltration
(iv) Condensation

Q.2 Which year is observed as the international year of freshwater     (1)
(i) 2005
(ii) 2004
(iii) 2003
(iv) 2007
Q.3 The chemical formula of potassium hydroxide is        (1)
(i) KOH
(ii) NaOH
(iii) Ca(OH)
2

(iv) Mg(OH)
2

Q.4 Which of these is not an Indian breed of sheep       (1)
(i) Lohi
(ii) Nali
(iii) Mooga
Q.5 Give one word:            (1)
(i) Traditional way of collecting water.
(ii) Water stored between layers of hard rock below water table.
Q.6 (i) Which liquid is an excellent solvent?       (½+1+½=2)
(ii)Mention the importance of this liquid in human body. (2 points)
(iii)What is the major cause of its depletion under the ground?
Q.7 Differentiate between rain water harvesting and drip irrigation. (2 points) (2)
Q.8 (i)If the soil is basic, organic matter is added to it-       (1+½=1½)
(a) Why is it done so?
Time (s) 2 4 6 8
Distance (m) 4 8 12 16

(b) What should be added if the soil is acidic?
(ii)Give one example of an organic acid.       (½)
Q.9 Draw the life cycle of silk moth.         (2)
Q.10 (i) Tassar, mooga,eri, pashmina. Choose the odd one out and give reason.
(1½+½=2)
(ii)What is the scientific name of mulberry tree?
Q.11 (i) Name the most common silk moth.                (½)
(ii)State 2 characteristics of the silk produced by silk moth.           (1)
(iii)What is a cocoon? Name the process involved in taking out silk thread from
cocoon.                    (1+½=1½)

Q.12 (i) Name the processes involved in label  (i) and  (ii) of this figure.   (1+2= 3)

(ii) Nearly three fourths of the earth is covered with water, yet there is an acute
scarcity of water in many parts of the world. Give two reasons.

Q.13

(i) What is the colour of the flower drawn in the picture with the soap solution?
(½)
Page 4

Section- A (PHYSICS)
Q.1. Fill in the blanks:          (1)
(i) In vehicles, the device that measures distance covered is __________ and the
device that measures speed is ___________.
Q.2. Draw the distance time graph for a truck parked on the road.   (1)
Q.3. Answer in one word-           (2)
(i) Image that can be obtained on screen.
(ii) The method of heat transfer in a steel rod.
Q.4. What are the two laws of reflection?        (2)
Q.5. Convert 45ºC to ºF.         (2)

Q.6.    Identify and define the beam of light.      (2)

Q.7. (i) Define convection.        (1+2=3)
(ii)Find the time period when the pendulum completes 30 oscillations in 15
seconds.
Q.8. Explain with diagram, why sea breeze occurs during day time?    (1+2=3)
Q.9. Give reasons:           (1½+ 1½=3)
(i) Why do we use woollen clothes in winter?
(ii) Why does the word „PHYSICS? appear as „             ? when we look at it in a
mirror? Explain.
Q.10.              (3)

Identify and define A and B in the above diagram.
A
B

Q.11. (i) What is speed?              (1+3+1=5)
(ii) Plot the following distance time graph on the graph paper.

(iii)Which type of motion is represented by the above graph?

Section- B (CHEMISTRY)

Q.1 The process by which plants loose water is known as      (1)
(i) Perspiration
(ii) Transpiration
(iii) Infiltration
(iv) Condensation

Q.2 Which year is observed as the international year of freshwater     (1)
(i) 2005
(ii) 2004
(iii) 2003
(iv) 2007
Q.3 The chemical formula of potassium hydroxide is        (1)
(i) KOH
(ii) NaOH
(iii) Ca(OH)
2

(iv) Mg(OH)
2

Q.4 Which of these is not an Indian breed of sheep       (1)
(i) Lohi
(ii) Nali
(iii) Mooga
Q.5 Give one word:            (1)
(i) Traditional way of collecting water.
(ii) Water stored between layers of hard rock below water table.
Q.6 (i) Which liquid is an excellent solvent?       (½+1+½=2)
(ii)Mention the importance of this liquid in human body. (2 points)
(iii)What is the major cause of its depletion under the ground?
Q.7 Differentiate between rain water harvesting and drip irrigation. (2 points) (2)
Q.8 (i)If the soil is basic, organic matter is added to it-       (1+½=1½)
(a) Why is it done so?
Time (s) 2 4 6 8
Distance (m) 4 8 12 16

(b) What should be added if the soil is acidic?
(ii)Give one example of an organic acid.       (½)
Q.9 Draw the life cycle of silk moth.         (2)
Q.10 (i) Tassar, mooga,eri, pashmina. Choose the odd one out and give reason.
(1½+½=2)
(ii)What is the scientific name of mulberry tree?
Q.11 (i) Name the most common silk moth.                (½)
(ii)State 2 characteristics of the silk produced by silk moth.           (1)
(iii)What is a cocoon? Name the process involved in taking out silk thread from
cocoon.                    (1+½=1½)

Q.12 (i) Name the processes involved in label  (i) and  (ii) of this figure.   (1+2= 3)

(ii) Nearly three fourths of the earth is covered with water, yet there is an acute
scarcity of water in many parts of the world. Give two reasons.

Q.13

(i) What is the colour of the flower drawn in the picture with the soap solution?
(½)

(ii) What is the indicator used here? Define indicators.        (½+1= 1½)
(iii) Will there be any colour change if we would have used vinegar to make the
flower. Why?             (½+1= 1½)
(iv) What is the chemical name of the base present in soap solution?         (½)
(v) Complete the following equation:       (1)
Magnesium hydroxide + Sulphuric acid
_________ + __________ + heat

Section- C(BIOLOGY) 
Q.1.
(i) Which of the following is formed after photosynthesis?   (1)
a) Carbohydrates
b) Fats
c) Proteins
d) Water
(ii) Which of the following is provided to Rhizobium by Legumes?
a) Food
b) Shelter
c) Both of these
d) None of these
Q.2. After complete digestion, fats breakdown into fatty acids and ___________.  (1)
Q.3. Naman observed that „Desert? is described as „hot? & dry?. Which of the following
statement explains this observation:          (1)
(i) Weather of Desert is hot & dry
(ii) Climate of Desert is hot & dry
(iii) Atmosphere of Desert is hot & dry
(iv) Environment of Desert is hot & dry
Q.4. The breathing rate in humans depend on       (1)
(i) Food taken
(ii) Size of lungs
(iii) Activity done
(iv) None of these
Q.5. Sam lives in a region where the temperature can be as low as – 37ºC. Name the
region and write the duration of day in this region.     (1)

Q.6. (i) The part of plant which contains stomata is _________.    (2)
(ii)The cells present around stomatal pore are called ______
STOMATA
Page 5

Section- A (PHYSICS)
Q.1. Fill in the blanks:          (1)
(i) In vehicles, the device that measures distance covered is __________ and the
device that measures speed is ___________.
Q.2. Draw the distance time graph for a truck parked on the road.   (1)
Q.3. Answer in one word-           (2)
(i) Image that can be obtained on screen.
(ii) The method of heat transfer in a steel rod.
Q.4. What are the two laws of reflection?        (2)
Q.5. Convert 45ºC to ºF.         (2)

Q.6.    Identify and define the beam of light.      (2)

Q.7. (i) Define convection.        (1+2=3)
(ii)Find the time period when the pendulum completes 30 oscillations in 15
seconds.
Q.8. Explain with diagram, why sea breeze occurs during day time?    (1+2=3)
Q.9. Give reasons:           (1½+ 1½=3)
(i) Why do we use woollen clothes in winter?
(ii) Why does the word „PHYSICS? appear as „             ? when we look at it in a
mirror? Explain.
Q.10.              (3)

Identify and define A and B in the above diagram.
A
B

Q.11. (i) What is speed?              (1+3+1=5)
(ii) Plot the following distance time graph on the graph paper.

(iii)Which type of motion is represented by the above graph?

Section- B (CHEMISTRY)

Q.1 The process by which plants loose water is known as      (1)
(i) Perspiration
(ii) Transpiration
(iii) Infiltration
(iv) Condensation

Q.2 Which year is observed as the international year of freshwater     (1)
(i) 2005
(ii) 2004
(iii) 2003
(iv) 2007
Q.3 The chemical formula of potassium hydroxide is        (1)
(i) KOH
(ii) NaOH
(iii) Ca(OH)
2

(iv) Mg(OH)
2

Q.4 Which of these is not an Indian breed of sheep       (1)
(i) Lohi
(ii) Nali
(iii) Mooga
Q.5 Give one word:            (1)
(i) Traditional way of collecting water.
(ii) Water stored between layers of hard rock below water table.
Q.6 (i) Which liquid is an excellent solvent?       (½+1+½=2)
(ii)Mention the importance of this liquid in human body. (2 points)
(iii)What is the major cause of its depletion under the ground?
Q.7 Differentiate between rain water harvesting and drip irrigation. (2 points) (2)
Q.8 (i)If the soil is basic, organic matter is added to it-       (1+½=1½)
(a) Why is it done so?
Time (s) 2 4 6 8
Distance (m) 4 8 12 16

(b) What should be added if the soil is acidic?
(ii)Give one example of an organic acid.       (½)
Q.9 Draw the life cycle of silk moth.         (2)
Q.10 (i) Tassar, mooga,eri, pashmina. Choose the odd one out and give reason.
(1½+½=2)
(ii)What is the scientific name of mulberry tree?
Q.11 (i) Name the most common silk moth.                (½)
(ii)State 2 characteristics of the silk produced by silk moth.           (1)
(iii)What is a cocoon? Name the process involved in taking out silk thread from
cocoon.                    (1+½=1½)

Q.12 (i) Name the processes involved in label  (i) and  (ii) of this figure.   (1+2= 3)

(ii) Nearly three fourths of the earth is covered with water, yet there is an acute
scarcity of water in many parts of the world. Give two reasons.

Q.13

(i) What is the colour of the flower drawn in the picture with the soap solution?
(½)

(ii) What is the indicator used here? Define indicators.        (½+1= 1½)
(iii) Will there be any colour change if we would have used vinegar to make the
flower. Why?             (½+1= 1½)
(iv) What is the chemical name of the base present in soap solution?         (½)
(v) Complete the following equation:       (1)
Magnesium hydroxide + Sulphuric acid
_________ + __________ + heat

Section- C(BIOLOGY) 
Q.1.
(i) Which of the following is formed after photosynthesis?   (1)
a) Carbohydrates
b) Fats
c) Proteins
d) Water
(ii) Which of the following is provided to Rhizobium by Legumes?
a) Food
b) Shelter
c) Both of these
d) None of these
Q.2. After complete digestion, fats breakdown into fatty acids and ___________.  (1)
Q.3. Naman observed that „Desert? is described as „hot? & dry?. Which of the following
statement explains this observation:          (1)
(i) Weather of Desert is hot & dry
(ii) Climate of Desert is hot & dry
(iii) Atmosphere of Desert is hot & dry
(iv) Environment of Desert is hot & dry
Q.4. The breathing rate in humans depend on       (1)
(i) Food taken
(ii) Size of lungs
(iii) Activity done
(iv) None of these
Q.5. Sam lives in a region where the temperature can be as low as – 37ºC. Name the
region and write the duration of day in this region.     (1)

Q.6. (i) The part of plant which contains stomata is _________.    (2)
(ii)The cells present around stomatal pore are called ______
STOMATA

(iii)During respiration, _________ gas enters and ________ gas
comes out through stomata.
Q.7. Observe the following reactions:        (2)
Reaction A : Glucose  Lactic acid + energy
Reaction B : Glucose  Carbon dioxide + water + Energy
(i) Which of the above reactions (A/ B) occur in our muscle cell while
exercising?
(ii) Accumulation of lactic acid in muscle cell causes ________.
(iii) Which of the reactions (A/ B) occur in the presence of oxygen & what is it
called?
Q.8. Differentiate between Cuscuta & Mushroom on the basis of:    (2)
(i) Place of growing (ii) Mode of nutrition
Q.9. Give reason:           (2)
(i) An athlete breathes faster after finishing race. Why?
(ii) We sneeze, when we inhale dust-laden air. Why?
Q.10. (i)Name the part:           (3)
(a) of Amoeba, which helps in ingestion of food.
(b) of Cow?s stomach, in which cellulose is digested.
(c) of Human alimentary canal, in which digestion is completed.
(ii)What is assimilation? Where does it occur?
Q.11. (i) How does elephant?s long trunk help it to live in tropical rainforest?  (two
points)           (3)
(ii)Which two adaptations protect penguins from cold climate?
(iii)Write two adaptations of polar bears which help them to swim.
Q.12. (i) Which partner of lichens lacks chlorophyll? Write its role.   (3)
(ii)Which plants are called partial heterotrophs? Why?
Q.13. (i) Draw human digestive system and label the following organs in it:  (5)
(a) Oesophagus
(b) Pancreas
(d) Large intestine
(ii) Where is „Bile? produced & where is it stored? Write the function of bile juice?
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