CBSE Class 6 Science Revision Notes

CBSE Class 6 Science introduces scientific inquiry, living organisms, food, materials, motion, water, natural resources and space. These chapter-wise notes cover all 12 current chapters and support clear concept revision for the 2026–27 academic session.

Science in Class 6 encourages students to observe their surroundings, ask questions and find answers through activities. The subject combines ideas from biology, chemistry, physics and earth science.

These CBSE Class 6 Science Revision Notes cover the main concepts from all 12 chapters. Students can use them to review important terms, processes, observations and everyday applications from the current syllabus.

Key Takeaways

• 12 chapters: The current Class 6 Science course begins with scientific inquiry and ends with space.
• Integrated subject: The textbook connects biology, chemistry, physics and earth science.
• Practical learning: Activities and observations form an important part of every chapter.
• Current textbook: The chapters follow the latest Class 6 Curiosity textbook.

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Chapter-Wise CBSE Class 6 Science Revision Notes

The current Class 6 Science chapters cover the living world, food, magnets, motion, materials, temperature, water, separation, natural resources and space.

CBSE Class 6 Science Curiosity Textbook: A General Overview

The Class 6 Science textbook, Curiosity, introduces science through real-life situations, activities and questions. It encourages students to investigate ideas instead of memorising facts.

The book brings together concepts from the physical world, living world, matter, health, environment and space. Its chapters use observations, stories, illustrations and hands-on tasks.

The textbook also introduces scientific processes such as comparing, measuring, recording and drawing conclusions. Students learn how scientific knowledge develops through evidence.

Chapter 1: The Wonderful World of Science

Science is a way of observing, questioning and exploring the world. This chapter introduces the basic nature of scientific inquiry.

Students learn that questions can lead to investigations and new discoveries. The chapter connects with ideas covered later in the textbook.

This introductory chapter is non-evaluative and does not contain regular assessment exercises.

Chapter 2: Diversity in the Living World

Plants and animals show great diversity in their forms, movements and habitats. Students observe these differences and group organisms according to shared features.

The chapter introduces herbs, shrubs and trees. It also discusses leaf venation, roots and visible characteristics of plants.

Animals can be compared through their movement, body structure and surroundings. The chapter also highlights biodiversity and its conservation.

Chapter 3: Mindful Eating: A Path to a Healthy Body

Food gives the body energy and supports growth. Different food items contain different nutrients.

Students learn about the importance of a balanced diet and healthy food choices. The chapter also connects food habits with local traditions and availability.

Mindful eating means paying attention to what, how and why we eat. It encourages suitable food choices and prevents waste.

Chapter 4: Exploring Magnets

Magnets attract certain materials such as iron. Materials attracted by magnets are called magnetic materials.

Every magnet has a north pole and a south pole. Like poles repel each other, while unlike poles attract.

Students explore the behaviour of magnets through simple activities. They also learn how a freely suspended magnet points in a north-south direction.

Chapter 5: Measurement of Length and Motion

Measurement helps people compare quantities accurately. Standard units ensure that measurements mean the same everywhere.

Students learn how to measure straight and curved lengths correctly. They also identify possible errors while using a scale.

Motion occurs when an object changes its position with time. The chapter introduces different forms of motion through familiar examples.

Chapter 6: Materials Around Us

Objects are made from materials such as wood, metal, glass, plastic and cloth. Each material has properties that make it suitable for particular uses.

Students group materials based on hardness, appearance, transparency and solubility. They also compare materials that float or sink.

The chapter helps students understand why the same object can be made from different materials. It also explains why one material may be unsuitable for certain purposes.

Chapter 7: Temperature and its Measurement

Temperature indicates how hot or cold an object is. Touch may not always provide an accurate temperature comparison.

A thermometer gives a more reliable reading. Students learn about the correct use of clinical and laboratory thermometers.

The chapter also discusses temperature scales and safe measurement practices. Thermometer readings must be observed carefully at eye level.

Chapter 8: A Journey through States of Water

Water exists in solid, liquid and gaseous states. Ice is solid water, while water vapour is its gaseous form.

Heating and cooling can change water from one state to another. Melting changes ice into liquid water, while freezing changes water into ice.

Evaporation changes liquid water into vapour. Condensation changes water vapour back into liquid droplets.

These processes also help explain the movement of water in nature.

Chapter 9: Methods of Separation in Everyday Life

Many materials occur as mixtures. Their components can be separated using differences in size, weight, solubility or physical state.

Handpicking removes larger unwanted particles. Winnowing separates lighter particles from heavier ones using moving air.

Sieving separates particles of different sizes. Sedimentation, decantation and filtration can separate insoluble solids from liquids.

Students learn that one method may not be enough for every mixture. Sometimes, two or more methods are used together.

Chapter 10: Living Creatures: Exploring their Characteristics

Living creatures have certain common characteristics. They need food, grow, respire, reproduce and respond to their surroundings.

Movement alone cannot identify something as living. Machines and flowing water can move but do not perform all life processes.

Plants also show growth, respiration and response. Their movements may be slower or less visible than those of animals.

The chapter helps students distinguish living creatures from non-living objects.

Chapter 11: Nature’s Treasures

Nature provides air, water, soil, rocks, minerals, forests and fuels. These resources support living organisms and human activities.

Some resources can be replaced naturally, while others take a very long time to form. Careless use can make even useful resources scarce.

Students learn about conservation and responsible consumption. Saving water, reducing waste and protecting forests help preserve nature’s resources.

Chapter 12: Beyond Earth

Earth is one of the planets moving around the Sun. The Sun and all the objects travelling around it form the solar system.

The Moon is Earth’s natural satellite. It appears to change shape because we see different portions of its illuminated side.

Stars are distant objects that produce their own light. Groups of stars may form recognisable patterns called constellations.

This chapter encourages students to observe the night sky and understand Earth’s place in space.

Key Features of the CBSE Class 6 Science Curiosity Textbook

The Curiosity textbook uses an activity-based approach to introduce scientific ideas. Its design helps students connect classroom learning with observations from daily life.

Activity-Based Science Learning

Each chapter includes activities that allow students to observe, compare and investigate. These tasks make concepts easier to understand.

Some activities require preparation or adult guidance. Students should follow all safety instructions while performing them.

Stories and Real-Life Situations

The chapters often begin with familiar situations or conversations. This approach connects new ideas with what students already know.

Food habits, magnets, water and natural resources are explained through daily experiences. Such examples make science more meaningful.

Questions That Encourage Thinking

In-text questions help students reflect on an activity or observation. They encourage students to explain how they reached a conclusion.

The book also includes open-ended questions. These may have more than one acceptable response when supported by a clear reason.

Integrated Scientific Concepts

The textbook combines concepts from biology, chemistry, physics and earth science. This helps students understand that different branches of science are connected.

For example, water is studied as a material, a changing substance and a natural resource.

Visual Aids and Illustrations

Diagrams, pictures and activity steps support visual understanding. Students can use them to identify structures, processes and relationships.

Labels and arrows in scientific diagrams should be studied carefully.

Keywords and Chapter Summaries

Each chapter includes important keywords and a summary. These sections help students recall the main ideas after completing the chapter.

The keywords also introduce the correct scientific vocabulary used in explanations and answers.

CBSE Class 6 Science Learning Objectives

The Class 6 Science course develops scientific understanding as well as observation and reasoning skills.

Students learn to:

• Observe objects, organisms and events carefully.
• Ask questions based on their surroundings.
• Compare materials and living organisms.
• Use simple tools for measurement.
• Record observations in tables or written form.
• Identify patterns and differences.
• Draw conclusions from activities.
• Connect scientific ideas with everyday situations.
• Use natural resources responsibly.
• Communicate observations using correct scientific terms.

The subject also encourages group discussion and peer learning. Students can compare their ideas and understand different ways of investigating a question.

Overall Important Concepts from Class 6 Science Chapters

The following concepts form the main foundation of Science Class 6:

Scientific Inquiry and Observation

Scientific inquiry begins with curiosity and questions. Observation, investigation and evidence help students understand how science works.

Diversity and Characteristics of Living Organisms

Plants and animals show many differences, but all living organisms carry out basic life processes. These ideas help students group and compare living creatures.

Food and Health

A varied diet provides the nutrients needed by the body. Healthy food choices also depend on age, activity and local availability.

Magnets, Measurement and Motion

Magnets show attraction and repulsion. Measurement provides accurate values, while motion describes a change in position.

Properties of Materials

Materials can be grouped by their hardness, transparency, solubility and other properties. These characteristics decide how materials are used.

Temperature and Changes in Water

Temperature measures hotness or coldness. Heating and cooling can change water between solid, liquid and gaseous states.

Separation of Mixtures

Mixtures can be separated by using differences in size, weight and solubility. The correct method depends on the materials present.

Natural Resources and Conservation

Air, water, forests and minerals are valuable natural resources. Their careful use helps protect the environment.

Earth and Space

The solar system includes the Sun, planets and other celestial objects. Observing the sky helps students understand the world beyond Earth.

Benefits of CBSE Class 6 Science Revision Notes

Well-organised revision notes help students review chapter content without reading every section again.

They can help students:

• Recall important definitions and processes.
• Review all 12 chapters in the correct sequence.
• Understand the central idea of each chapter.
• Revise keywords before tests.
• Connect activities with their conclusions.
• Prepare clear answers using scientific vocabulary.
• Identify chapters that need more practice.
• Review diagrams, examples and observations quickly.

These Class 6 Science notes work best when used with the textbook. Activities, illustrations and exercise questions provide the detailed practice needed for a strong understanding.

Exam Preparation Guide for CBSE Class 6 Science

Begin by reviewing the complete chapter list. Mark the chapters that contain concepts you find difficult.

Read the chapter summary and keywords first. Then return to the main sections that need more attention.

Study diagrams with their labels. Try drawing simple figures without looking at the textbook.

Revise scientific processes in the correct order. For example, understand how sedimentation happens before studying decantation.

Practise explaining activities through three parts:

1. What was done
2. What was observed
3. What conclusion was reached

Use complete sentences in descriptive answers. Include a suitable example when the question asks for an explanation.

Do not memorise an activity without understanding its result. The same concept may appear in a different situation.

Complete the “Let us enhance our learning” exercises after every chapter. Review incorrect answers and return to the related concept.