Poonam Singh, Satyam and, Dinesh Kumar Solutions for Chapter: Changes Around Us, Exercise 4: Chapter Test
Poonam Singh Science Solutions for Exercise - Poonam Singh, Satyam and, Dinesh Kumar Solutions for Chapter: Changes Around Us, Exercise 4: Chapter Test
Attempt the free practice questions on Chapter 6: Changes Around Us, Exercise 4: Chapter Test with hints and solutions to strengthen your understanding. All in One - Science solutions are prepared by Experienced Embibe Experts.
Questions from Poonam Singh, Satyam and, Dinesh Kumar Solutions for Chapter: Changes Around Us, Exercise 4: Chapter Test with Hints & Solutions
Which new materials are formed when a candle burns?
The iron blade of a spade is fixed to a wooden handle. Describe.
Write the changes which can be reversed.
Write reasons to keep vegetables and fruits in a refrigerator.
Picking of lemon is a desirable change. Justify.
The question seems to be wrong in the textbook. The correct question can be written as
Pickling of lemon is a desirable change. Justify.
Explain the changes involve in inflating a balloon and bursting a balloon.
Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the condition.
Prove with an experiment that melting of wax is a reversible change.
