Month: January 2024

Activity 4.2 in ‘Acids, Bases, and Salts’ teaches students about natural indicators using turmeric. This experiment shows how turmeric changes color in the presence of basic substances. Students learn to distinguish between acidic, basic, and neutral substances, highlighting turmeric’s role as a pH-sensitive indicator and its practical application in identifying chemical reactions in everyday substances.

Class 7 – Chapter 4- Acids, Bases, and Salts – Activity 4.2- Turmeric as a Natural Indicator Read More

Activity 4.1 in Class 7’s ‘Acids, Bases, and Salts’ demonstrates how to use litmus paper to identify acidic and basic substances. Students test various solutions, including lemon juice and soap, observing the litmus paper’s color change. This foundational experiment helps students learn about acids, bases, and neutral solutions, enhancing their understanding of chemical properties and observational skills.

Class 7 – Chapter 4- Acids, Bases, and Salts -Activity 4.1- Testing with Litmus Paper Read More

Chapter 4 ‘Acids, Bases, and Salts’ in Class 7 Science introduces key chemical concepts through interactive activities. It covers litmus tests, natural indicators like turmeric and China rose, and the neutralization process. These experiments help students understand acids, bases, and their reactions, fostering hands-on learning and deeper comprehension of chemical properties.

Class 7 – Chapter 4- Acids, Bases, and Salts- An Overview of Activities Read More