---
type: "Subject"
knowledge_type: "subject"
entity_type: "subject"
id: "66ab5c44543b6f461d7a9cca"
title: "Class 7 - Science"
board: "CBSE"
curriculum: "CBSE"
class_id: "66ab5807ffbb5019db722149"
class: "Class 7"
class_name: "Class 7"
class_slug: "class-7"
class_canonical_url: "https://www.edzy.ai/cbse-class-7"
class_markdown_url: "https://www.edzy.ai/okf/class/cbse-class-7.md"
subject: "Science"
subject_slug: "science"
canonical_url: "https://www.edzy.ai/cbse-class-7-science"
markdown_url: "https://www.edzy.ai/okf/subject/cbse-class-7-science.md"
source_type: "examSubject"
source_id: "66ab5c44543b6f461d7a9cca"
source: "Edzy"
book_count: "1"
chapter_count: "12"
topic_count: "75"
version: "1"
last_updated: "2026-06-25"
svg_icon: "https://edzy-ai.s3.ap-south-1.amazonaws.com/edzy-express-ts/cf4118b3-af31-4256-9b18-f7171d6a1aa1.svg"
color_name: "Mint Green"
color_light_foreground: "#10B981"
color_light_background: "#F0F8E8"
color_dark_foreground: "#2FC48E"
color_dark_background: "#334A2A"
---

# Class 7 - Science

Science is a CBSE Class 7 subject on Edzy.

## Knowledge Snapshot

| Field | Details |
| :--- | :--- |
| Board | CBSE |
| Curriculum | CBSE |
| Class | Class 7 |
| Subject | Science |
| Subject Slug | science |
| Book Count | 1 |
| Chapter Count | 12 |
| Topic Count | 75 |
| Last Updated | 2026-06-25 |

## OKF Hierarchy

| Level | Title | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- |
| Class | Class 7 | https://www.edzy.ai/cbse-class-7 | https://www.edzy.ai/okf/class/cbse-class-7.md |
| Subject | Science | https://www.edzy.ai/cbse-class-7-science | https://www.edzy.ai/okf/subject/cbse-class-7-science.md |

## Book Index

| No. | Book ID | Book | Book Slug | Chapters | Topics | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | 69bff2e0fb5daab696d919f6 | Curiosity | curiosity | 12 | 75 | https://www.edzy.ai/cbse-class-7-science-curiosity | https://www.edzy.ai/okf/book/cbse-class-7-science-curiosity.md |

## Book-Wise Chapter Index

### Curiosity

| No. | Chapter ID | Chapter | Chapter Number In Book | Pages | Page Count | Topics | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | 69bff3e9fb5daab696d9a3ee | The Ever-Evolving World of Science | 1 | 1-6 | 6 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-the-ever-evolving-world-of-science | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-the-ever-evolving-world-of-science.md |
| 2 | 69bff410fb5daab696d9b642 | Exploring Substances: Acidic, Basic, and Neutral | 2 | 7-22 | 16 | 6 | https://www.edzy.ai/cbse-class-7-science-curiosity-exploring-substances-acidic-basic-and-neutral | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-exploring-substances-acidic-basic-and-neutral.md |
| 3 | 69bff430fb5daab696d9c5e8 | Electricity: Circuits and their Components | 3 | 23-40 | 18 | 8 | https://www.edzy.ai/cbse-class-7-science-curiosity-electricity-circuits-and-their-components | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-electricity-circuits-and-their-components.md |
| 4 | 69bff44ffb5daab696d9d4c9 | The World of Metals and Non-metals | 4 | 41-51 | 11 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-the-world-of-metals-and-non-metals | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-the-world-of-metals-and-non-metals.md |
| 5 | 69bff482fb5daab696d9ec22 | Changes Around Us: Physical and Chemical | 5 | 57-72 | 16 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-changes-around-us-physical-and-chemical | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-changes-around-us-physical-and-chemical.md |
| 6 | 69bff4c9fb5daab696da0d40 | Adolescence: A Stage of Growth and Change | 6 | 73-88 | 16 | 5 | https://www.edzy.ai/cbse-class-7-science-curiosity-adolescence-a-stage-of-growth-and-change | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-adolescence-a-stage-of-growth-and-change.md |
| 7 | 69bff4e3fb5daab696da1b13 | Heat Transfer in Nature | 7 | 89-104 | 16 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-heat-transfer-in-nature | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-heat-transfer-in-nature.md |
| 8 | 69bff507fb5daab696da2cce | Measurement of Time and Motion | 8 | 105-120 | 16 | 6 | https://www.edzy.ai/cbse-class-7-science-curiosity-measurement-of-time-and-motion | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-measurement-of-time-and-motion.md |
| 9 | 69bff530fb5daab696da3faf | Life Processes in Animals | 9 | 121-136 | 16 | 4 | https://www.edzy.ai/cbse-class-7-science-curiosity-life-processes-in-animals | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-life-processes-in-animals.md |
| 10 | 69bff54cfb5daab696da4e69 | Life Processes in Plants | 10 | 137-152 | 16 | 6 | https://www.edzy.ai/cbse-class-7-science-curiosity-life-processes-in-plants | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-life-processes-in-plants.md |
| 11 | 69bff571fb5daab696da613b | Light: Shadows and Reflections | 11 | 153-168 | 16 | 8 | https://www.edzy.ai/cbse-class-7-science-curiosity-light-shadows-and-reflections | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-light-shadows-and-reflections.md |
| 12 | 69bff5aefb5daab696da821c | Earth, Moon, and the Sun | 12 | 169-186 | 18 | 3 | https://www.edzy.ai/cbse-class-7-science-curiosity-earth-moon-and-the-sun | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-earth-moon-and-the-sun.md |

## Chapter Index

| No. | Book ID | Chapter ID | Chapter | Chapter Number In Book | Pages | Page Count | Topics | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | 69bff2e0fb5daab696d919f6 | 69bff3e9fb5daab696d9a3ee | The Ever-Evolving World of Science |  | 1-6 | 6 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-the-ever-evolving-world-of-science | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-the-ever-evolving-world-of-science.md |
| 2 | 69bff2e0fb5daab696d919f6 | 69bff410fb5daab696d9b642 | Exploring Substances: Acidic, Basic, and Neutral |  | 7-22 | 16 | 6 | https://www.edzy.ai/cbse-class-7-science-curiosity-exploring-substances-acidic-basic-and-neutral | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-exploring-substances-acidic-basic-and-neutral.md |
| 3 | 69bff2e0fb5daab696d919f6 | 69bff430fb5daab696d9c5e8 | Electricity: Circuits and their Components |  | 23-40 | 18 | 8 | https://www.edzy.ai/cbse-class-7-science-curiosity-electricity-circuits-and-their-components | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-electricity-circuits-and-their-components.md |
| 4 | 69bff2e0fb5daab696d919f6 | 69bff44ffb5daab696d9d4c9 | The World of Metals and Non-metals |  | 41-51 | 11 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-the-world-of-metals-and-non-metals | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-the-world-of-metals-and-non-metals.md |
| 5 | 69bff2e0fb5daab696d919f6 | 69bff482fb5daab696d9ec22 | Changes Around Us: Physical and Chemical |  | 57-72 | 16 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-changes-around-us-physical-and-chemical | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-changes-around-us-physical-and-chemical.md |
| 6 | 69bff2e0fb5daab696d919f6 | 69bff4c9fb5daab696da0d40 | Adolescence: A Stage of Growth and Change |  | 73-88 | 16 | 5 | https://www.edzy.ai/cbse-class-7-science-curiosity-adolescence-a-stage-of-growth-and-change | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-adolescence-a-stage-of-growth-and-change.md |
| 7 | 69bff2e0fb5daab696d919f6 | 69bff4e3fb5daab696da1b13 | Heat Transfer in Nature |  | 89-104 | 16 | 7 | https://www.edzy.ai/cbse-class-7-science-curiosity-heat-transfer-in-nature | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-heat-transfer-in-nature.md |
| 8 | 69bff2e0fb5daab696d919f6 | 69bff507fb5daab696da2cce | Measurement of Time and Motion |  | 105-120 | 16 | 6 | https://www.edzy.ai/cbse-class-7-science-curiosity-measurement-of-time-and-motion | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-measurement-of-time-and-motion.md |
| 9 | 69bff2e0fb5daab696d919f6 | 69bff530fb5daab696da3faf | Life Processes in Animals |  | 121-136 | 16 | 4 | https://www.edzy.ai/cbse-class-7-science-curiosity-life-processes-in-animals | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-life-processes-in-animals.md |
| 10 | 69bff2e0fb5daab696d919f6 | 69bff54cfb5daab696da4e69 | Life Processes in Plants |  | 137-152 | 16 | 6 | https://www.edzy.ai/cbse-class-7-science-curiosity-life-processes-in-plants | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-life-processes-in-plants.md |
| 11 | 69bff2e0fb5daab696d919f6 | 69bff571fb5daab696da613b | Light: Shadows and Reflections |  | 153-168 | 16 | 8 | https://www.edzy.ai/cbse-class-7-science-curiosity-light-shadows-and-reflections | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-light-shadows-and-reflections.md |
| 12 | 69bff2e0fb5daab696d919f6 | 69bff5aefb5daab696da821c | Earth, Moon, and the Sun |  | 169-186 | 18 | 3 | https://www.edzy.ai/cbse-class-7-science-curiosity-earth-moon-and-the-sun | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-earth-moon-and-the-sun.md |

## Topic Inventory

| No. | Topic ID | Topic |
| :--- | :--- | :--- |
| 1 | 69ca8b70769cc4edcda168c7 | Introduction to Science |
| 2 | 69ca8b70769cc4edcda168cb | Curiosity in Science |
| 3 | 69ca8b70769cc4edcda168cf | Exploring Properties of Materials |
| 4 | 69ca8b70769cc4edcda168d3 | Changes in Materials |
| 5 | 69ca8b70769cc4edcda168d7 | Life Processes in Organisms |
| 6 | 69ca8b70769cc4edcda168db | Understanding Time |
| 7 | 69ca8b70769cc4edcda168df | The Nature of Light |
| 8 | 69ca8ba7769cc4edcda3144b | Nature – Our Science Laboratory |
| 9 | 69ca8ba7769cc4edcda3144f | Litmus as an Indicator |
| 10 | 69ca8ba7769cc4edcda31453 | Red Rose as an Indicator |
| 11 | 69ca8ba7769cc4edcda31457 | Turmeric as an Indicator |
| 12 | 69ca8ba7769cc4edcda3145b | What Happens When Acidic Substances Mix with Basic Substances? |
| 13 | 69ca8ba7769cc4edcda3145f | Neutralisation in Daily Life |
| 14 | 69ca8bee769cc4edcda525e5 | A Torchlight |
| 15 | 69ca8bee769cc4edcda525e9 | A Simple Electrical Circuit |
| 16 | 69ca8bee769cc4edcda525ed | Electric Cell |
| 17 | 69ca8bee769cc4edcda525f1 | Battery |
| 18 | 69ca8bee769cc4edcda525f5 | Electric Lamp |
| 19 | 69ca8bee769cc4edcda525f9 | Making an Electric Lamp Glow |
| 20 | 69ca8bee769cc4edcda525fd | Electric Switch |
| 21 | 69ca8bee769cc4edcda52601 | Circuit Diagrams |
| 22 | 69ca8bf6769cc4edcda56a5f | Properties of Materials |
| 23 | 69ca8bf6769cc4edcda56a66 | Malleability |
| 24 | 69ca8bf6769cc4edcda56a6c | Ductility |
| 25 | 69ca8bf6769cc4edcda56a70 | Sonority |
| 26 | 69ca8bf6769cc4edcda56a74 | Conduction of Heat |
| 27 | 69ca8bf6769cc4edcda56a78 | Conduction of Electricity |
| 28 | 69ca8bf6769cc4edcda56a7c | Effect of Air and Water on Metals: Iron |
| 29 | 69ca8c2d769cc4edcda71557 | A Substance May Change in Appearance but Remain the Same! |
| 30 | 69ca8c2d769cc4edcda7155b | A Substance May Change in Appearance and Not Remain the Same! |
| 31 | 69ca8c2d769cc4edcda7155f | Rusting |
| 32 | 69ca8c2d769cc4edcda71563 | Combustion |
| 33 | 69ca8c2d769cc4edcda71567 | Can Physical and Chemical Changes Occur in the Same Process? |
| 34 | 69ca8c2d769cc4edcda7156b | Are Changes Permanent? |
| 35 | 69ca8c2d769cc4edcda7156f | Are All Changes Desirable? |
| 36 | 69ca8c2d769cc4edcda71573 | Some Slow Natural Changes |
| 37 | 69ca8c6f769cc4edcda91229 | Growing With Age: The Teenage Years |
| 38 | 69ca8c6f769cc4edcda91230 | Changes that Indicate Reproductive Capability |
| 39 | 69ca8c6f769cc4edcda91235 | Emotional and Behavioural Changes in Adolescents |
| 40 | 69ca8c6f769cc4edcda9123a | Making Adolescence a Joyful Experience |
| 41 | 69ca8c6f769cc4edcda91246 | The ‘Why’ Question for Adolescence |
| 42 | 69ca8c29769cc4edcda6f6ff | Conduction of Heat |
| 43 | 69ca8c29769cc4edcda6f703 | Good Conductors of Heat |
| 44 | 69ca8c29769cc4edcda6f707 | Convection |
| 45 | 69ca8c29769cc4edcda6f70b | Land and Sea Breeze |
| 46 | 69ca8c29769cc4edcda6f70f | Radiation |
| 47 | 69ca8c29769cc4edcda6f713 | Water Cycle |
| 48 | 69ca8c29769cc4edcda6f717 | Seepage of Water Beneath the Earth |
| 49 | 69ca8c60769cc4edcda89989 | Measurement of Time |
| 50 | 69ca8c60769cc4edcda89995 | A Simple Pendulum |
| 51 | 69ca8c60769cc4edcda8999f | SI Unit of Time |
| 52 | 69ca8c60769cc4edcda899aa | Slow or Fast |
| 53 | 69ca8c60769cc4edcda899b1 | Speed |
| 54 | 69ca8c60769cc4edcda899b8 | Uniform and Non-uniform Linear Motion |
| 55 | 69ca8ca0769cc4edcdaa803f | Circulatory System Overview |
| 56 | 69ca8ca0769cc4edcdaa8043 | Importance of Digestion and Respiration |
| 57 | 69ca8ca0769cc4edcdaa8033 | Nutrition in Animals |
| 58 | 69ca8ca0769cc4edcdaa8039 | Respiration in Animals |
| 59 | 69ca8c9e769cc4edcdaa715a | How Do Plants Grow? |
| 60 | 69ca8c9e769cc4edcdaa715e | How Do Plants Get Food for their Growth? |
| 61 | 69ca8c9e769cc4edcdaa7162 | Leaves: the ‘food factories’ of plants |
| 62 | 69ca8c9e769cc4edcdaa7166 | Role of air in the preparation of food |
| 63 | 69ca8c9f769cc4edcdaa716a | Transport in Plants |
| 64 | 69ca8c9f769cc4edcdaa716e | Do Plants Respire? |
| 65 | 69ca8cdf769cc4edcdac5e54 | Sources of Light |
| 66 | 69ca8cdf769cc4edcdac5e58 | Does Light Travel in a Straight Line? |
| 67 | 69ca8cdf769cc4edcdac5e5c | Light through Transparent, Translucent, and Opaque Materials |
| 68 | 69ca8cdf769cc4edcdac5e60 | Shadow Formation |
| 69 | 69ca8cdf769cc4edcdac5e64 | Reflection of Light |
| 70 | 69ca8cdf769cc4edcdac5e68 | Images Formed in a Plane Mirror |
| 71 | 69ca8cdf769cc4edcdac5e6c | Pinhole Camera |
| 72 | 69ca8cdf769cc4edcdac5e70 | Making Some Useful Items |
| 73 | 69ca8d1c769cc4edcdae2bab | Rotation of the Earth |
| 74 | 69ca8d1c769cc4edcdae2bb2 | Revolution of the Earth |
| 75 | 69ca8d1c769cc4edcdae2bb8 | Eclipses |

## Related OKF Entities

| Entity Type | Title | Markdown URL |
| :--- | :--- | :--- |
| Class | Class 7 | https://www.edzy.ai/okf/class/cbse-class-7.md |
| Book | Curiosity | https://www.edzy.ai/okf/book/cbse-class-7-science-curiosity.md |
| Chapter | The Ever-Evolving World of Science | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-the-ever-evolving-world-of-science.md |
| Chapter | Exploring Substances: Acidic, Basic, and Neutral | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-exploring-substances-acidic-basic-and-neutral.md |
| Chapter | Electricity: Circuits and their Components | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-electricity-circuits-and-their-components.md |
| Chapter | The World of Metals and Non-metals | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-the-world-of-metals-and-non-metals.md |
| Chapter | Changes Around Us: Physical and Chemical | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-changes-around-us-physical-and-chemical.md |
| Chapter | Adolescence: A Stage of Growth and Change | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-adolescence-a-stage-of-growth-and-change.md |
| Chapter | Heat Transfer in Nature | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-heat-transfer-in-nature.md |
| Chapter | Measurement of Time and Motion | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-measurement-of-time-and-motion.md |
| Chapter | Life Processes in Animals | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-life-processes-in-animals.md |
| Chapter | Life Processes in Plants | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-life-processes-in-plants.md |
| Chapter | Light: Shadows and Reflections | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-light-shadows-and-reflections.md |
| Chapter | Earth, Moon, and the Sun | https://www.edzy.ai/okf/chapter/cbse-class-7-science-curiosity-earth-moon-and-the-sun.md |

## Source Attribution

| Field | Value |
| :--- | :--- |
| Source | Edzy |
| Reference Type | examSubject |
| Reference ID | 66ab5c44543b6f461d7a9cca |
| Subject ID | 66ab5c44543b6f461d7a9cca |
| Canonical URL | https://www.edzy.ai/cbse-class-7-science |
| Markdown URL | https://www.edzy.ai/okf/subject/cbse-class-7-science.md |
| Last Updated | 2026-06-25 |