CBSE Class 7 Science Sample Paper Set A

CBSE Class 7 Science Sample Paper Set A. It’s always recommended to practice as many CBSE sample papers as possible before the examinations. The latest sample papers have been designed as per the latest blue prints, syllabus and examination trends. Sample papers should be practiced in examination condition at home or school and also show it to your teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.

I Multiple choice questions :

1) Acid present in curd is ________

a) Acetic acid b) lactic acid c) citric acid d) hydrochloric acid

2) Dilute acids react with metals to form salt and ______ gas

a) H2 b) O2 c) CO2 d) none of these

3) An oxidation reaction involves

a) addition of oxygen b) addition of oxygen and removal of hydrogen

c) addition of hydrogen and removal of oxygen d) addition of hydrogen

4) An arrow pointing downwards in a chemical reaction shows

a) evolution of gas b) oxidation c) displacement d) formation of precipitate

5) In insects exchange of gases takes place through

a) Spiracles b) gills c) lungs d) stomata

6) In plants exchange of gases take place through

a) Buds b) roots c) entire leaf surface d) stomata

7) The loss of water through the stomata is called

a) Wilting b) transpiration c) translocation d) transportation

8) Forests are called green lungs because they supply __________ to the atmosphere

a) O2 b) CO2 c) N2 d) H2O

9) Plants do not depend on animals for

a) Pollination b) food c) seed dispersal d) nutrients

10) The first link in a food chain is

a) Herbivores b) carnivores c) green plants d) none of these

11) The lowest layer in the understory of a forest is formed by

a) Shrubs b) herbs c) trees d) tall grass

12) _________ are primary consumers

a) producers b) herbivores c) carnivores d) non green plants

13) The primary source of energy in nature is

a) O2 b) CO2 c) fuels d) sun

14) Rainwater harvesting is done

a) to conserve ground water b) to reduce irrigation c) for afforestation d) for industrialization

15) Which of the following cannot split light into its seven colours

a) diamond cut in a special way b) prism c) convex lens d) water droplets suspended in air

16) A magnifying lens is a

a) plane mirror b)concave lens c) convex lens d)none of these

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