Chapter 1: Nutrition in Plants

- Photosynthesis: This topic explains the process of photosynthesis, where plants use sunlight, carbon dioxide, and water to produce glucose and oxygen. It also covers the structure and function of chlorophyll in photosynthesis.
- Modes of nutrition: This section discusses the different modes of nutrition in plants, including autotrophic and heterotrophic nutrition. It explains how plants obtain nutrients through various methods.
- Saprophytes and parasites: This topic explores the concepts of saprophytic and parasitic plants, their adaptations, and how they obtain their nutrients.

Chapter 2: Nutrition in Animals

- Digestive system: This section covers the structure and functions of the digestive system in humans and animals. It explains the process of ingestion, digestion, absorption, and egestion.
- Digestive process: This topic delves into the different stages of digestion, including mechanical and chemical digestion. It also discusses the role of enzymes in breaking down food.
- Balanced diet: This section focuses on the importance of a balanced diet and the different nutrients required for proper growth and development. It explains the role of carbohydrates, proteins, fats, vitamins, and minerals.

Chapter 3: Fibre to Fabric

- Natural fibers: This topic covers the different natural fibers obtained from plants and animals, such as cotton, jute, silk, and wool. It explains their sources, characteristics, and uses.
- Spinning and weaving: This section explores the processes of spinning and weaving fibers to make fabrics. It explains the steps involved in each process and the tools used.
- Synthetic fibers: This topic discusses synthetic fibers like nylon, polyester, and acrylic. It explains their manufacturing process, properties, and uses.

Chapter 4: Heat

- Temperature and heat: This section explains the concepts of temperature and heat, their units of measurement, and the difference between them.
- Transfer of heat: This topic covers the different methods of heat transfer, including conduction, convection, and radiation. It explains the principles behind each method.
- Effects of heat: This section discusses the effects of heat on various materials, such as expansion and contraction. It also covers the concept of heat energy and its applications.

Chapter 5: Acids, Bases, and Salts

- Acids and bases: This topic introduces the basic properties of acids and bases, including their taste, reaction with indicators, and electrical conductivity. It also explains the pH scale and its significance.
- Chemical reactions: This section explores the different types of chemical reactions involving acids and bases. It covers neutralization reactions, salt formation, and the importance of pH in everyday life.
- Importance of salts: This topic discusses the uses of salts in various fields, such as agriculture, medicine, and industry. It explains the concept of hard and soft water and the process of water softening.

Chapter 6: Physical and Chemical Changes

- Physical changes: This section explains the concept of physical changes, where the substance's state or appearance changes without forming new substances. It covers examples like melting, freezing, and evaporation.
- Chemical changes: This topic focuses on chemical changes, where new substances are formed due to a chemical reaction. It explains the signs of a chemical reaction, such as color change, gas formation, and temperature change.
- Rusting: This section discusses the process of rusting, the conditions required for rust formation, and its prevention. It also covers the importance of paints and