Class 6 Science NCERT Notes:

“Comprehensive Class 6 NCERT Science study notes covering key chapters, concepts, and important topics. Perfect for students to build a strong understanding of science fundamentals and excel in their studies.”

Chapter 1: Food: Where Does It Come From?

• Food is essential for growth, energy and development.
• We get food from plants and animals.
• Plants provide fruits, vegetables, and grains, while animals provide milk, meat, and eggs.
• Some plants and animals are used for food production by humans.

Chapter 2: Components of Food

• Food is made up of nutrients: carbohydrates, proteins, fats, vitamins, and minerals.
• Carbohydrates give energy, proteins help in growth and repair, fats store energy, and vitamins and minerals help in proper body functions.
• Water and Roughage (fiber) are important for digestion.

Chapter 3: Fibre to Fabric

• Fibre is a natural thread-like material obtained from plants and animals.
• Cotton, jute, wool, and silk are examples of natural fibers.
• These fibers are used to make clothes and other textiles.
• The process of turning fibers into fabric involves spinning and weaving.

Chapter 4: Sorting Materials Into Groups

• Materials can be classified based on their properties like texture, color, shape, and hardness.
• Materials are categorized into solid, liquid, and gas.
• Objects can be grouped as per their uses, such as for construction, cooking, or decoration.

Chapter 5: Separation of Substances

• Different methods of separating substances include filtration, evaporation, and handpicking.
• Solids and liquids can be separated using processes like filtration.
• Liquids can be separated by distillation or evaporation.

Chapter 6: Changes Around Us

• Materials undergo changes when subjected to heat, pressure, or mixing with other substances.
• Changes can be reversible (like melting ice) or irreversible (like burning wood).
• Physical changes do not form new substances, while chemical changes do.

Chapter 7: Getting to Know Plants

• Plants are classified into herbs, shrubs, and trees based on their size and structure.
• Plants have different parts: roots, stems, leaves, flowers, and fruits.
• Roots anchor plants, stems transport nutrients, leaves prepare food through photosynthesis, and flowers produce seeds.

Chapter 8: Body Movements

• The human body has a skeleton made up of bones that provide support and protection.
• The joints in the body allow movement. Different types of joints allow different movements (e.g., hinge joint, ball-and-socket joint).
• Animals also have different types of body structures and movements suited to their environment.

Chapter 9: The Living Organisms and Their Surroundings

• Living organisms depend on their environment for survival.
• The environment includes air, water, soil, temperature, and other living organisms.
• Adaptations help organisms survive in specific habitats.

Chapter 10: Motion and Measurement of Distances

• Motion refers to the change in the position of an object over time.
• Different units, like meters and kilometers, are used to measure distances.
• Instruments like rulers, measuring tapes, and odometers are used for measurement.

Chapter 11: Light, Shadows, and Reflection

• Light travels in a straight line and can be reflected by mirrors or other surfaces.
• Shadows are formed when an object blocks light.
• The size and shape of the shadow depend on the position of the light source and the object.

Chapter 12: Electricity and Circuits

• Electricity is a form of energy that can be used to power devices.
• A circuit is a closed path through which electric current flows.
• Components like bulbs, switches, and wires are used to build simple circuits.

Chapter 13: Fun with Magnets

• Magnets attract magnetic materials like iron and steel.
• Magnetic poles always come in pairs (north and south).
• Magnets can be used in various devices like motors, compasses, and magnetic toys.

Chapter 14: Water

• Water is essential for life and exists in three states: solid (ice), liquid, and gas (water vapor).
• The water cycle involves processes like evaporation, condensation, and precipitation.
• Water is also important for various daily activities such as cooking, cleaning, and drinking.

Chapter 15: Air Around Us

• Air is a mixture of gases, including oxygen, nitrogen, and carbon dioxide.
• Plants release oxygen, which is necessary for life.
• Air is important for breathing, and it moves to create wind.

Chapter 16: Garbage In, Garbage Out

• Garbage is any waste that is discarded.
• Proper waste disposal is important to prevent pollution and protect the environment.
• Methods like composting, recycling, and waste segregation help manage garbage.

Chapter 17: Into the Earth

• The Earth is made up of three layers: the crust, mantle, and core.
• The crust is the outermost layer, and it is made up of rocks and minerals.
• The mantle lies beneath the crust and is made up of semi-solid rocks.
• The core is divided into the outer core and inner core. The outer core is liquid, and the inner core is solid.

Chapter 18: Wastewater Story

• Wastewater is used water from homes, industries, and offices that contains impurities.
• It needs to be treated before being released back into the environment.
• The treatment process involves removing solids, purifying the water, and making it safe for reuse.
• The wastewater treatment process includes steps like filtration, settling, and disinfection.

---

Tips for Studying Class 6 Science:

1. Understand Key Concepts: Make sure to understand the basic principles behind each topic. Don’t just memorize facts—try to apply them.
2. Use Diagrams: Diagrams are essential in science, especially for topics like the human body, plants, and circuits. Draw and label diagrams to enhance understanding.
3. Practical Experiments: Hands-on activities and simple experiments can help reinforce theoretical knowledge. Engage in experiments where possible (e.g., making a simple circuit or growing a plant).
4. Revise Regularly: Periodic revision will help reinforce concepts and improve retention.
5. Ask Questions: If a topic is unclear, don’t hesitate to ask your teacher or peers for clarification.