S K Aggarwal and V K Sally Solutions for Chapter: Periodic Test - 3, Exercise 1: PERIODIC TEST - 3
S K Aggarwal Science Solutions for Exercise - S K Aggarwal and V K Sally Solutions for Chapter: Periodic Test - 3, Exercise 1: PERIODIC TEST - 3
Attempt the practice questions on Chapter 22: Periodic Test - 3, Exercise 1: PERIODIC TEST - 3 with hints and solutions to strengthen your understanding. Learning Elementary Science with Online Support solutions are prepared by Experienced Embibe Experts.
Questions from S K Aggarwal and V K Sally Solutions for Chapter: Periodic Test - 3, Exercise 1: PERIODIC TEST - 3 with Hints & Solutions
State the nutritional needs of adolescents
Why are cutting instruments often sharpened?
Why is friction called a necessary evil?
State two differences between musical sound and noise.
In our country, the legal age for marriage is 18 years for girls and 21 years for boys. The marriage occurring before this age limit is known as early marriage. Explain why early marriage is not good for the couple as well as the child.
Take a tumbler and fill it with water. Cover the mouth of the tumbler with a thick card. Turn the tumbler upside down slowly while keeping card pressed to its mouth. Gently remove the hand pressing card. You will find that the card continues to hold water in the tumbler even after it is not supported by your hand. Explain your observation by giving reason.
Nilam has to push a lighter box and Rani has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
Identify the sources of noise pollution in your locality. Discuss with your parents, friends and neighbours. Suggest how to control noise pollution in your locality.
