Which one of the following is not a product of petroleum?

• CNG
  
  

• Paraffin wax
  
  

• Bitumen
  
  

• Kerosene

Red Data Book contains a record of

• extinct species
  
  

• flora
  
  

• fauna
  
  

• endangered species

Why are the soles of the shoes treaded?

• To decrease friction
  
  

• To increase friction
  
  

• To increase life of the shoes
  
  

• To give the shoes more protection

Sarika took distilled water in a bottle and tried to find whether it conducts electricity or not. What is she likely to find?

• It is good conductor of electricity
  
  

• It is an insulator
  
  

• It is poor conductor of electricity
  
  

• None of the above

Which one of the following statements is not correct?

• There is a maximum limit of current which can safely flow in the electric circuit.
  
  

• Fuses are inserted in electric circuits of all the buildings
  
  

• If the proper fuse is inserted in a circuit, it will blow off, if the current is more than the safe limit.
  
  

• There is a minimum limit of current which can safely flow in the electric circuit.

Which one of the following places is most likely to be affected by a cyclone?

• Puri
  
  

• Mumbai
  
  

• Goa
  
  

• Porbandar

The change in seasons on the earth occurs because

• the axis of rotation of the earth is tilted with respect to the plane of its orbit
  
  

• the distance between the earth and the sun is not constant
  
  

• the axis of rotation of the earth is parallel to the plane of its orbit
  
  

• the axis of rotation of the earth is perpendicular to the plane of its orbit

There are two columns, Column A and Column B:

Column A	Column B
1) Canopy	a) Dead plant and animal tissues
2) Decomposers	b) A wild animal
3) Humus	c) Microorganism
4) Porcupine	d) Branches of tall tree

Which one of the following is the correct sequence of Column B for the given sequence of Column A?

• a,c,b,d

• c,d,b,a

• d,c,a,b

• a,b,c,d

Why is formative assessment important in science?

• It helps in developing scientific temper in students
  
  

• It is diagnostic
  
  

• It helps in better understanding of science
  
  

• It is easy to conduct

Why are science fairs organised in schools?

• To help the students to score higher in their examination
  
  

• To nurture creativity and experimentation in science among students
  
  

• To evaluate students on the basis of their performance
  
  

• To prepare students for higher education in science