The CBSE (Central Board of Secondary Education) Class 7 syllabus covers a wide range of subjects and topics to provide a comprehensive education to students. Here is a detailed breakdown of the key topics covered in each subject:

1. Mathematics:
- Integers: Addition, subtraction, multiplication, and division of integers.
- Fractions and Decimals: Operations on fractions and decimals, conversions, and applications.
- Data Handling: Representation and interpretation of data using tables, graphs, and charts.
- Simple Equations: Solving linear equations in one variable.
- Lines and Angles: Concepts of lines, angles, and their properties.
- Triangles and their Properties: Types of triangles, properties, and constructions.
- Congruence of Triangles: Congruence criteria and their applications.
- Comparing Quantities: Ratios, percentages, and applications.
- Rational Numbers: Properties and operations on rational numbers.
- Perimeter and Area: Calculating the perimeter and area of various shapes.
- Algebraic Expressions: Understanding and evaluating algebraic expressions.
- Exponents and Powers: Laws of exponents and their applications.
- Practical Geometry: Constructing angles, triangles, quadrilaterals, and circles.
- Symmetry: Identifying and drawing symmetric figures.

2. Science:
- Nutrition in Plants and Animals: Concepts of photosynthesis, digestion, and food chains.
- Weather, Climate, and Adaptations of Animals to Climate: Understanding weather patterns, climate, and animal adaptations.
- Respiration in Organisms: Processes and mechanisms of respiration.
- Transportation in Plants and Animals: Circulatory systems and transport of substances.
- Reproduction in Plants: Sexual and asexual reproduction in plants.
- Motion and Time: Concepts of motion, speed, and time.
- Electric Current and its Effects: Basics of electric current, circuits, and their effects.
- Light: Reflection, refraction, and the behavior of light.
- Water: Properties of water and its importance.
- Forests: Understanding the ecosystem, biodiversity, and conservation.
- Waste Water Management: Techniques for waste water treatment and management.
- Respiration in Organisms: Processes and mechanisms of respiration.

3. Social Science:
- Our Environment: Understanding the environment, natural resources, and their conservation.
- Inside Our Earth: Layers of the Earth, earthquakes, and volcanoes.
- Our Changing Earth: Geographical processes like weathering, erosion, and deposition.
- Air: Composition, importance, and pollution.
- Water: Water bodies, their distribution, and conservation.
- Natural Vegetation and Wildlife: Types of vegetation, wildlife, and their conservation.
- Human Environment: Settlements, transportation, and communication.
- Human-Environment Interactions: Understanding resources, industries, and their impacts.
- Life in the Temperate Grasslands: Climate, vegetation, and animal life.
- Life in the Deserts: Adaptations of plants, animals, and human life in the desert regions.
- Political Science: Understanding the political system, governance, and constitution.
- Geography: Concepts of maps, globes, and various geographical regions.

4. English:
- Reading Comprehension: Understanding and analyzing various texts.
- Writing Skills: Developing writing skills through essays, letters, and stories.
- Grammar: Parts of speech, tenses, sentence structure, and punctuation.
- Literature: Exploring poems, stories, and plays to enhance reading and interpretation skills.
- Vocabulary: Expanding vocabulary through