Lakhmir Singh and Manjit Kaur Solutions for Chapter: Physical and Chemical Changes, Exercise 5: WORKSHEET

Author:Lakhmir Singh & Manjit Kaur

Lakhmir Singh Chemistry Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Physical and Chemical Changes, Exercise 5: WORKSHEET

Attempt the free practice questions on Chapter 2: Physical and Chemical Changes, Exercise 5: WORKSHEET with hints and solutions to strengthen your understanding. Lakhmir Singh's Science Chemistry solutions are prepared by Experienced Embibe Experts.

Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Physical and Chemical Changes, Exercise 5: WORKSHEET with Hints & Solutions

MEDIUM
7th ICSE
IMPORTANT

Classify the following change into exothermic and endothermic and physical and chemical changes.

2. Freezing of water

EASY
7th ICSE
IMPORTANT

Classify the following change into exothermic and endothermic and physical and chemical changes.

3. Melting of ice

MEDIUM
7th ICSE
IMPORTANT

Classify the following change into exothermic and endothermic and physical and chemical changes.

4. Evaporation of water

MEDIUM
7th ICSE
IMPORTANT

Classify the following change into exothermic and endothermic and physical and chemical changes.

5. Adding water into ammonium chloride

HARD
7th ICSE
IMPORTANT

Complete the following cross word puzzle.

Question Image

Across:

8. Earthquake is a _____.

Down:

1. A change which involves absorption of heat from the surroundings.

2. A change in which a new substance is formed.

3. A change in which heat is evolved.

4. Change in physical properties of a substance.

5. A change that can be reversed.

6. Metal used in galvanisation method.

7. A change which occurs quickly.

MEDIUM
7th ICSE
IMPORTANT

Classify the following change into exothermic and endothermic and physical and chemical changes.

1. Adding water into quick lime