Chemicals and Materials

Author:Anita Sood, Anupama Bhandari, Madhabi Bose & Shelly Wadhwa
8th CBSE
IMPORTANT

Practice Other Chapters from Chemicals and Materials

Expanded Universal Science>Chemicals and Materials>Synthetic Fibres and Plastics

In this chapter, we will learn to differentiate between natural and synthetic fibres and analyze the advantages and disadvantages of synthetic fibres. We will also learn to identify different types of plastics, their uses, and their effects on the environment.

Expanded Universal Science>Chemicals and Materials>Metals and Non-metals

We will learn to classify elements into metals, non-metals, and metalloids. This chapter explores the physical and chemical properties of metals and non-metals. We will also discuss the chemical reactions of metal and non-metals with air, water, and acids.

Expanded Universal Science>Chemicals and Materials>Coal and Petroleum

This chapter lists different types of natural resources and explains the formation and composition of coal and petroleum. It also discusses the process of extraction and refining of petroleum, the importance of the conservation of fossil fuels, and energy.

Expanded Universal Science>Chemicals and Materials>Combustion, Flame and Fuels

This chapter classifies combustible and non-combustible substances and explains its types. It lists the conditions necessary for combustion. It also describes fuel, its types, and states the characteristic features of an ideal fuel with examples.