NCERT Exemplar Problems Class 7 Science – Fibre to Fabric Question 1: The rearing of silkworms for obtaining silk is called (a) cocoon (b) silk (c) sericulture . (d) silviculture Answer: (c) Sericulture is a practice of rearing silkworms for obtaining silk while silviculture is a practice of developing and caring forests Question 2: Which…
Read more
NCERT Exemplar Problems Class 7 Science – Nutrition in Animals Question 1: Given below from (i) to (iv) are some food items. (i) Boiled and mashed potato (ii) Glucose solution (iii) A slice of bread (iv) Mustard oil Which of the above will give blue-black colour when tested with iodine? (a) (i) and (ii) (b)…
Read more
NCERT Exemplar Problems Class 7 Science – Nutrition in Plants Question 1: Organisms which prepare food for themselves using simple naturally available raw materials are referred to as (a) heterotrophs (b) autotrophs (c) parasites (d) saprophytes Answer: (b) Autotrophs are organisms that make food themselves from simple substances like water, C02 in the presence of…
Read more
NCERT Exemplar Problems Class 8 Science The Department of Education in Science & Mathematics (DESM) & National Council of Educational Research & Training (NCERT) developed Exemplar Problems in Science and Mathematics for Upper Primary Stage, Secondary and Senior Secondary Classes with the objective to provide the students a large number of quality problems in various…
Read more
NCERT Exemplar Problems Class 8 Science Chapter 18 Pollution of Air and Water Question1 Air is a mixture of various gases. One of the gas is 21% part of the air and is essential for the survival of human beings. This gas is (a) nitrogen (b) oxygen (c) ozone (d) argon Answer. (b) Oxygen makes…
Read more
NCERT Exemplar Problems Class 8 Science Chapter 17 Stars and the Solars System Question1 Morning star is the name given to (a) Pole star (b) star Sirius (c) planet Jupiter (d) planet Venus Answer. (d) Morning star is the name given to the planet Venus because sometimes it appears in the eastern sky before sunrise.…
Read more
NCERT Exemplar Problems Class 8 Science Chapter 16 Light Question 1 Part of the eye which controls the entering of light is called (a) iris (b) cornea (c) lens (d) retina Answer. (a) Iris is a dark muscular structure behind the cornea, which controls the amount of light entering into the eye. Question 2 We…
Read more
NCERT Exemplar Problems Class 8 Science Chapter 15 Some Natural Phenomena Question1 An electroscope is a device which is used to find if an object is (a) charged (b) magnetic (c) free of cracks (d) hot Answer. (a) An electroscope is a device, which is used to test whether an object is charged or not.It…
Read more
NCERT Exemplar Problems Class 8 Science Chapter 14 Chemical Effects of Electric Current Question 1 An electric current can produce (a) heating effect (b) chemical effect (c) magnetic effect (d) chemical, heating and magnetic effects Answer. (d) When an electric current is passed through a conducting solution, it causes chemical reactions. The resulting effect is…
Read more
NCERT Exemplar Problems Class 8 Science Chapter 13 Sound Question 1 A list of mediums is given below (i) Wood (ii) Water (iii) Air (iv) Vacuum In which of these mediums can sound travel? (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (iii) and (iv) (d) (ii), (iii) and (iv) Answer. (b) Sound…
Read more