Science Model PaperScience Model Paper for class 10

1. List two differences between acquired and inherited traits.
2. Explain why
   1. Danger signals are red in colour?
   2. Convex mirrors are commonly used as rear-view mirrors.
3. what is meant by the power of accommodation of the eyes? how is it related to the focal length of the eye lens?
4. the water in deep-sea appears blue sea appears blue. explain why?
5. How are power and focal length of a lend related?
6. what is vegetative propagation? list two advantages of vegetative propagation.
7. explain
   1. Draw a labelled diagram of a human male reproductive system.
   2. State the role of seminal vesicles and prostate gland.
   3. What is a vasectomy?
   4. Draw a longitudinal section of a flower.
   5. Give a difference between the Vereen gamete and the zygote. explain their role in sexual.
8. Give the name and molecular formula of a higher homologue of propane.
9. a person cannot see objects kept beyond 2 m distinctly. find the power of correcting lenses.
10. what is biological magnification?
11. what is a metalloid? name any two metalloids.
12. Draw a ray diagram
    1. myopic eye
    2.  Hypermetropic eye
13. what is catenation.
14. write any two isomers of heptane
15. a lens produces an erect image of size 15 mm when an object of size 6 mm is placed 15 cm from its optical centre.

Science Model Paper