Chapter 1 · ICSE Class 6 Chemistry (Selina Concise)

Introduction to Chemistry

Discover what chemistry is, its role in daily life, and how it can be used for both good and harmful purposes.

🧪 Chapter 1

Chemistry used in everyday life: cooking, medicine, and cleaning Three icons showing chemistry at work in daily life: a cooking pot, a medicine bottle, and a cleaning bottle 🍳 💊 🧴 Cooking Medicine Cleaning Chemistry is everywhere in our daily lives
1.1

What is Chemistry

Chemistry is the branch of science that studies the composition, properties, and behaviour of matter.

1

Give an example of chemistry in everyday cooking.

Baking soda reacting with an acid to make a cake rise

2

Why is chemistry called the 'central science'?

Because it connects and overlaps with physics, biology, and earth science, helping explain processes across all of them

1.2

Importance and Misuse of Chemistry

Chemistry gives us fertilisers, medicines, and materials, but can also be misused to create harmful substances like explosives or pollutants.

1

Give one beneficial and one harmful use of chemistry.

Beneficial: fertilisers to grow more food. Harmful: excessive pesticide use polluting water sources

2

Why must chemicals like fertilisers be used carefully?

Overuse can pollute soil and water and harm the environment, even though they help crops grow

Practice

Exercises

1. Define chemistry in your own words.

2. Give one example of chemistry's use in medicine.

3. Give one example of chemistry's use in agriculture.

4. What is a pesticide used for?

5. Why should chemicals be handled carefully?