Science is one of the most important subjects in schools because of its relevance to students’ lives and the universally applicable problem-solving and critical thinking skills. Various concepts and topics from the subject that are introduced from Class 7 are further discussed at length in higher classes. Here, in this article, students can easily find details of the Samacheer Kalvi TN Board Class 7 Science Syllabus, which gives an overview of the major concepts and topics taught in class for the current academic year.
Samacheer Kalvi TN Board Class 7 Science Syllabus 2021-22
The Samacheer Kalvi class 7 Syllabus provided by the TN board gives the knowledge on matter around us, living world of plants and animals, light, heat, measurements etc.
| PHYSICS |
| Measurements |
| Idea of derived quantities and Units (Area, Volume, Density of solids and liquids) |
| Explanation and Measuring Astronomical distance. 1 AU & 1 light year. |
| Numerical problems |
| Work, Power and Energy |
| Distance – displacement |
| Speed & velocity |
| Distance- time graph |
| Velocity – time graph |
| Acceleration – time |
| Centre of gravity and three states of equilibrium |
| Plumb line and spirit level |
| Science today |
| Adventures in sports – like a bird flies |
| Measure and calculate the speed of moving objects |
| pulse rate |
| Numerical problems |
| Light |
| Sources of Light Rectilinear propagation of Light |
| Pinhole camera Shadows Colours in Spectrum |
| Reflection |
| Plane Mirror (Right or left) |
| Sunlight–seven colours–dispersion & synthesis of colours – Newton’s Disc. |
| Numerical problems |
| Heat |
| Heat & Temperature. |
| Thermodynamic scales: Celsius, Fahrenheit, Kelvin and Rankin. |
| Measuring temperature: Clinical and Laboratory thermometer. |
| Thermometric liquids Numerical problems. |
| Electricity |
| Explain the classification of materials based on electrical properties. |
| Describe simple electric circuit – Open circuit and Closed circuit. |
| Explains heating effect and magnetic effect of electric current. |
| Universe and Space Science |
| Basic concepts of Universe- milky way |
| Building blocks of Universe |
| Satellites – Natural and Artificial |
| ISRO |
| CHEMISTRY |
| Matter Around Us |
| Separation of substances – Evaporation – Condensation – Crystallization. |
| Effect of temperature on – solid, liquid and gases |
| Occurrence of Elements and Compounds in nature |
| Elements in human body |
| Elements in air |
| Molecules of Elements and Compounds |
| Symbols of some common elements |
| Atomicity of elements |
| Changes Around Us |
| Physical change-Crystallization-Melting-Evaporation-Freezing-Sublimation-Chemical change-Rusting of iron-Burning |
| Curdling |
| Chemical reaction of Baking Soda with lemon juice |
| Conditions needed for a chemical change |
| Indicators of a chemical change |
| Periodic and non periodic change |
| Endothermic and Exothermic change |
| Fermentation |
| Atomic Structure |
| Structure of an atom |
| Sub-atomic particles and its properties |
| Molecules, compounds mixture and its types |
| Symbols |
| Wastes and its Management |
| Synthetic fibers-Types and uses |
| Polymers |
| Plastics-Types and uses-Hazardness of Plastics |
| PLA Plastics |
| Various methods of disposing Plastics |
| Biodegradable plastics |
| Plastic eating Bacteria |
| Glass-Types and uses |
| Chemistry in Everyday life |
| Medicines –Antibiotics-Analgesics-Antipyretic-Antiseptics-Antihistamine-Antacids/O RS |
| Combustion and its types |
| Flame and its structure |
| Fire control |
| Fire extinguishers |
| BIOLOGY |
| Living world of Plants |
| Characteristics of living things |
| Habitat – Aquatic and Terrestrial plants |
| Herbs, shrubs and trees |
| Parts of plants – Root, stem, leaves and flowers Reproduction in plants, Pollination, Types of Pollination, Pollinators, Fertilization |
| Modification of roots, stems, leaves 1.6 Kinds of stems |
| Living World of Animals |
| Need for classification |
| The 5 kingdom classification |
| Binomial Nomenclature (Introduction) |
| Health and Hygiene |
| Test for Starch, protein and Fat-Taking care of our body-taking care of our teeth, our eyes , hair |
| Hygienic habits |
| Communicable diseases (Bacteria and Virus) Any 3 |
| Safety and first aid (cuts and burns) |
| Organization in Organisms |
| Introduction of human organ systems and functions |
| The body and health as understood in the Indian system health care |
| Life Process |
| Plant and animal cell comparison |
| Cell as a fundamental unit of life |
| Human cells related to functions. |
| Structure and function of all cell organelles (in brief.) |
| Environmental Science – Resource use and Management |
| Availability of water |
| Sources of water |
| Forms of water |
| Ground water |
| Depletion of water |
| Distribution of water |
| Scarcity of water |
| Water management-Rain water harvesting-Desalination of sea water (R.O) |
| Economic Biology |
| Animal products (Food, Clothing, ) |
| Animal Fibers(wool, silk) |
| Hazards in silk and wool industries (ANTHRAX) |
| Sericulture and Ahimsha/Peace silk |
| Poultry farming |
| Animal protection and maintenance |
Why should we study Science?
Because there are some reasons
- Science prepares for future.
- Science feeds a natural love for learning
- Science opens doors to many disciplines
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