Which one of the following man-made fibers are also called artificial silk?
Acrylic
Polyester
Nylon
Rayon
D.
Rayon
Rayon is obtained from cellulose, so it is called a man-made fibre. It is termed as artificial silk due to its resemblance in appearance with silk.
The following observations were made by students A, B, C and D when they rubbed solid baking soda on dry litmus paper The correct observation was made by the student
C
D
A
B
Practical work in Science may be given due emphasis in order to
keep proper check on punctuality and regularity of students
help the students verify the theoretical concept
improve the percentage of marks obtained by the students
help the students develop the habit of maintaining written records
Which one of the following is the major objective of teaching of Science at upper primary stage?
To learn important facts and formulae
To develop proficiency in solving exercises given at the end of the chapter
To promote rational thinking
To remember names of scientists and scientific discoveries
Which one of the following is the key feature of Formative Assessment in Science?
It is aimed at developing scientific temper in the students
It is aimed at enhancing practical skills
It is conducted at the end of the year
It is diagnostic in nature
Project method in teaching of Science is suited most
to strengthen reasoning skill of students
promote scientific method of working
promote understanding of basic concepts in Science
enhance numerical abilities of students
Which of the following statements related to earthquakes is not correct?
The record of the seismic waves is called seismograph
The seismograph records the seismogram
The Richter Scale is not linear but logarithmic
The seismic waves originate from focus
The gas which forms carboxy-hemoglobin in the blood, causing suffocation is
carbon monoxide
nitrogen
carbon dioxide
chlorofluorocarbon
Constructivist approach in teaching of Science refers to
providing more and more reading material to students
providing additional academic help to weak students
applying different mathematical formulae in solving problems
providing experiential learning to students
