CBSE Class 7 Science Question Paper Set 5 Solved

Read and download CBSE Class 7 Science Question Paper Set 5 Solved designed as per the latest question paper pattern and Class 7 examination guidelines issued by CBSE, NCERT and KVS. The past year Question Papers for Class 7 Science have been provided with solutions which will help students to assess their performance and find out topics in Science grade 7 which they need to improve to get better marks in Standard 7 exams. After solving these last year papers also refer to solved Sample Papers for Class 7 Science available on our website to build strong understanding of the subject

Science Question Paper Class 7

Students can refer to the below Class 7 Science Question Paper designed to help students understand the pattern of questions that will be asked in Grade 7 exams. Please download CBSE Class 7 Science Question Paper Set 5 Solved

Science Class 7 Question Paper

 

SECTION A
 
1.Fill in the blanks
 
a. Green plants are categorised as ___________ since they prepare their own food. 
 
b. No medium is required for transfer of heat by the process of ____________ 
 
c. The chemical name of vinegar is ______________. 
 
d. Leaves have tiny pores called _____________through which they exchange gases. 
 
e. The maximum temperature of the day occurs generally in the _______________. 
 
f. On_______________ the World Water Day is celebrated every year. 
 
2. Choose the correct answer
 
a. Amarbel is an example of
 
i) Autotroph       ii) Parasite           iii) Saprotroph         iv) Host
 
b. During heavy exercise , we get cramps in the leg due to the accumulation of
 
i) carbon dioxide         ii) lactic acid           iii) formic acid         iv) water
 
c. Which option best describes a polar region?
 
i) hot and humid                     ii) moderate temperature, heavy rainfall
 
iii) extremely cold climate       iv) hot and dry.
 
d. The heating element used in electric iron and hot plate is made up of
 
i) copper              ii) aluminum              iii) nichrome               iv) all of these
 
e. The total water
 
i) in the lakes and rivers of the world remains constant
 
ii) under the ground remains constant
 
iii) in the seas and the oceans of the world remains constant
 
iv) of the world remains constant.
 
f. During waste water treatment, the sludge is decomposed in another tank with the help of
 
i) aerobic bacteria        ii) anaerobic bacteria             iii) aeration              iv) none of these
 
3. State TRUE or FALSE.
 
a. Chemical energy is converted into solar energy during photosynthesis. 
 
b. Evaporation of water is a chemical change. 
 
c. All the changes in the weather are driven by the sun. 
 
d. To make a battery of two cells, the negative terminal of one cell is connected to the positive terminal of the other cell.
 
e. Water shortage is a problem faced only by people living in rural areas. 
 
f. Untreated human wastes are a health hazard. 
 
4. Give ONE word / term for the following.
 
a. The tiny openings or holes present on the sides of insects for gaseous exchange. 
 
b. The average weather pattern taken over a long time at a place. 
 
c. The longer line in the symbol for a cell represents this terminal. 
 
d. A technique of watering plants by making use of narrow tubings which deliver water directly at the base of a plant.
 
e. This large structure helps a toucan to reach the fruits on branches which are otherwise too weak to support its weight.
 
f. The scientist who discovered the magnetic effect of electric current. 
 
g. The process of water seepage into the ground. 
 
SECTION B
 
 
5 Name the pigment that helps to capture sun light during photosynthesis. 
 
6 Back of refrigerators are always painted black. Give reasons. 
 
7 When an iron nail is dipped in copper sulphate solution for some time,the nail turns red. Why?
 
8 How do frogs breathe in water ? 
 
9 Name any two elements that determine the weather of a place. 
 
10 What is the use of a fuse? 
 
11 You have been asked to maintain a garden. State any two measures you will adopt to minimise the use of water.
 
12 Manholes are provided at the junction of sewers. Why? 
 
13 The red-eyed frog has sticky pads on its feet. Why? 
 
14 Draw the symbols for the following:- a) an electric bulb b) a switch in OFF position. 
 
15 State any one factor that reduces water infiltration. 
 
16 What is sewage? 
 
17 Name any two devices based on the magnetic effect of electric current. 
 
18 State any two factors responsible for the depletion of water table. 
 
19 What is the function of skimmer in a Wastewater Treatment Plant? 
 
20 Write, the complete word equation for photosynthesis. 
 
21 Woollen clothes keep us warm in winter. Give two reasons. 
 
22 Describe how crystals of copper sulphate are prepared. 
 
23 Write any two differences between aerobic and anaerobic respiration. 
 
24 State any two adaptations seen in polar bears. 
 
25 State any two ways by which electromagnets can be made more stronger. 
 
26 State any two measures that can be taken to minimise the clogging of drains and reduce pollutants in sewage.
 
27 Write any two differences between conduction and convection.
 
 


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