MS. Tejinder Sondhi Solutions for Exercise 1: TEST YOUR KNOWLEDGE
MS. Tejinder Sondhi Science Solutions for Exercise - MS. Tejinder Sondhi Solutions for Exercise 1: TEST YOUR KNOWLEDGE
Attempt the free practice questions from Exercise 1: TEST YOUR KNOWLEDGE with hints and solutions to strengthen your understanding. CANDID New Trends in SCIENCE 6 solutions are prepared by Experienced Embibe Experts.
Questions from MS. Tejinder Sondhi Solutions for Exercise 1: TEST YOUR KNOWLEDGE with Hints & Solutions
Give examples to show that when substances are mixed, it may result in a chemical or physical change depending on the conditions.

When a candle burns, both physical and chemical changes occur. Explain.

Explain the difference between physical and chemical changes

Explain the difference between reversible and irreversible changes.

Plants prepare their own food by using carbon dioxide and water in the presence of sunlight and chlorophyll.
(a) Is it a chemical change or a physical change?
(b) How many substances are taking part in the change? Name these substances.
(c) Name the form of energy involved in this change.

Give an example of reversible change which is useful to us.

Give an example of irreversible change which is useful to us.

Which of the following is a physical and reversible change?
