Chemistry

This chapter covers topics like introduction to science and its branch-chemistry, development of chemistry - a historical perspective, notable chemists/scientists, importance and dark side of chemistry, and laboratory equipments related to chemistry.

This chapter defines matter and discusses its composition. We will learn in detail the different states of matter, that is solids, liquids and gases. It also describes the characteristics and properties of solids, liquids and gases.

This chapter deals with the classification of matter. We will study different types of mixtures and the need for separating the components of a mixture. It also highlights various methods by which we can separate the components of a mixture.

In this chapter, we will discuss the components and structure of air and atmosphere. We will study different types and examples of air pollutants. We will also discuss the effects and causes of acid rain, global warming and the greenhouse effect.

In this chapter, we will learn about the importance of water for humans, plants, and animals. We will study the uses of water for a variety of purposes. We will also understand the need for saving water.

The chapter discusses the changes around us. Some change can be reversed and some cannot be reversed. The different ways of bringing change are discussed here.

This chapter sheds light on the rocks and minerals. It explains the different kinds of rocks like granite, sandstone, marble, and slate, along with their basic features. Further, it briefs on gemstones.