answr
Login
Join Now

Class 7 Biology

8 Chapters

Class 7
CBSE

Overview

Class 7 Biology teaches the basics of the subject through these students can get a firm grip on the concepts. Also, these are based on the up-to-date syllabus that helps students to get a complete understanding of the chapters. Moreover, biology covers 10 chapters of the book and the rest of the 8 chapters are of chemistry and physics. Chapter 1 is about nutrition in plants that explains the mode of nutrition, and how living organisms overcome their need for food and nutrition. Chapter 2 is about nutrition in animals and how the animal gets nutrition from plants directly or indirectly. Chapter 3 is about the weather, climate, and adaptations of animals to these climatic conditions of the different regions are explained. Chapter 4 deals with soil, nature, and properties. Chapter 5 teaches respiration in organisms such as how it occurs, why organisms respire, etc. Chapter 6 teaches transportation in plants and animals, which means how different things and nutrition transport in plants and animals bodies. Chapter 7 describes the various method of reproduction in plants such as budding, etc. Chapter 8 is about water, which is the most important necessity for life on earth. Chapter 9 defines forests and their conditions in our country. Lastly, chapter 10 explains wastewater story, which simply describes water as a lifeline for all life on earth.

Explore all Chapters

Nutrition in PlantsNutrition in AnimalsWeather, Climate and Adaptations of Animals to ClimateRespiration in OrganismsTransportation in Animals and PlantsReproduction in PlantsForests: Our LifelineWastewater Story

Explore all Chapters

Chapter 1 : Nutrition in Plants

The human body is never idle, even if you are. Even when you are not doing anything, your body keeps on functioning. There are six life processes that all living organisms perform. They are movement, respiration, growth, reproduction, excretion and nutrition. Let us learn about all of these briefly. 

Important topic links

Different Modes of Nutrition in PlantsStructure of a CellPhotosynthesisOther Modes of NutritionHow Nutrients are Replenished in the Soil?

Chapter 2 : Nutrition in Animals

The human body is never idle, even if you are. Even when you are not doing anything, your body keeps on functioning. There are six life processes that all living organisms perform. They are movement, respiration, growth, reproduction, excretion and nutrition. Let us learn about all of these briefly. 

Important topic links

Animal NutritionHuman Digestive SystemTypes of TeethDigestion in Other Organisms (Grass Eating Animals and Amoeba)

Chapter 3 : Weather, Climate and Adaptations of Animals to Climate

Are you happy or are you sad today? Do you know that majority of the times, the weather outside predicts our moods? If what we predict every day is weather, then what is climate? How do living beings other than humans adapt to it? Let us study the weather and climate, and adaptation of animals to climate below!

Important topic links

Climate and WeatherAnimal Adaptations

Chapter 4 : Respiration in Organisms

Let us do an activity before we proceed. Close your nose and hold your breath for say at least 3 minutes. Ready? Let's Go! Could you do it? Majority of us fail at this. Because respiration is an important function performed by our body. Its what keeps us alive. So let us know more about respiration in organisms!

Important topic links

BreathingBreathing in Other OrganismsRespiration in Plants

Chapter 5 : Transportation in Animals and Plants

During lunchtime, Naina's mother served her bitter gourd. Looking at which Naina frowned and pushed the table across the table. Naina wondered how does transportation occur in humans and plants. Let us find out about transportation in animals and plants.

Important topic links

Blood and Its ComponentsBlood VesselsStructure and Working of HeartHeartbeat and Pulse RateTransportation in Plants and Excretion in Animals

Chapter 6 : Reproduction in Plants

We all know how humans are born. Today, through technology, we can even see them growing inside the womb. But do you ever wonder how plants reproduce? Who is their mother? Can we see them growing inside their 'womb'? If you have these questions, you've come to the right place. Let's study about reproduction in plants.

Important topic links

Modes of Reproduction in PlantsAsexual Modes of ReproductionPollination and Fertilisation

Chapter 7 : Forests: Our Lifeline

Have you ever traveled in a car or bus? Forest products are of great importance in our day to day lives. Every one of us depends on the forest for survival. Forest is our lifeline. And now that they're disappearing, we're responsible for shortening our lifeline. Lets us study about importance of forest. 

Important topic links

Natural Resources - ForestsInterdependency in ForestDeforestation and Forest Conservation

Chapter 8 : Wastewater Story

Did you know around 63 million people in India do not have access to clean water for drinking? This crisis our country faces is one of the biggest hurdles we have to overcome. The general health of our population and the safety of our environment is at stake. Let us see what can be done to remedy the situation.

Important topic links

What is Sewage?Wastewater Treatment and SanitationSewage Disposal