Which of the following is not objective of a science laboratory?

• To arouse interest towards science amongst the students

• To prove scientific principles

• To use the spare time of students

• To develop the measuring skills

Major objective of organization of Science Exhibitions is to

• grade students on practical skills

• provide opportunity to students to compete with others

• provide opportunity to students to showcase their creative ideas

• provide opportunity to students to enhance their academic performance

If the result of an experiment turn out to be different then what was expected, then it can be concluded that

• one has not followed scientific method

• one need to repeat the experiment till the desired results are obtained

• one must admit that the experiment was a failure

• one should explore the possible reasons for it in the conclusion section

Read the following which appears in the Class VIII NCERT textbook.

Nylon appears like silk. It is strong and flexible. These endearing qualities of nylon created a public sensation, or nylon mania when it was introduced in 1939. Women's stockings made from this new fiber were in great demand. But, unfortunately, most of the nylon productions had to be diverted to making parachutes during the Second World War (1939-1945). After the War, when the production of stockings resumed, supply did not match the demand. There was a huge black market for this product. Women had to wait for hours in queues to get a pair. Often there were 'nylon riots'.

What are the significances of including the above in a science textbook?

1. To develop a historical perspective in science and the development of ideas.
2. To develop an appreciation of how new inventions create new demands.
3. To develop a holistic understanding of science.
4. Including such anecdotes makes science textbook light and easy.

• B and C

• A and D

• A, B and C

• A and C