Students often refer to Class 5 EVS Notes and Chapter 7 Energy How Things Work Class 5 Notes during last-minute revisions.
Class 5 EVS Chapter 7 Notes Energy How Things Work
Class 5 Energy How Things Work Notes
→ Energy: It helps things move, light up, produce sound, do work and change temperature.
→ Light: A form of energy that helps us see things around us.
→ Sound: A form of energy that we hear.
→ Sun: A natural source of light and heat energy.
→ Work: Using energy to do any task or activity.
→ Temperature: A measure that tells us how hot or cold something is.
→ Sound Energy: Energy made by vibrations that we hear as sound.
→ Heat Energy: Energy that makes things warm or hot.
→ Sources of Energy: Things that give energy to do work and stay active. For living things like people and animals, food is a main source of energy.
→ Fuel: The substance that gives us energy to do different activities like cooking, running vehicles, or lighting lamps. Petrol, diesel, cooking gas, wood, and coal are all examples of fuel.
→ Electricity: It is a form of energy that helps many things work, like fans, lights, and machines. It is used in homes, schools, and industries to make our lives easier by giving light, sound, movement, and heat.
→ Energy Efficiency: Using less energy to do the same work. It helps save resources and reduces waste, like using LED bulbs instead of regular ones to save electricity.
→ Transformer: A device that controls the flow of electricity.
→ Generation of Electricity: The process of making electricity using natural sources like the Sun, wind, and water.
→ Pinwheel: A small paper toy that spins when wind blows on it.
→ Wind: Moving air that we can feel. Wind can be used to turn pinwheels, move ships, and generate electricity.
→ Magnifying Glass: A tool that makes things look bigger. It can focus sunlight to create heat.
→ Water Wheel: A wheel that spins when water flows over it. It shows how flowing water can be used to do work or generate energy.
→ Sail: A cloth on a boat or ship that catch wind to help it move across the sea.
→ Solar Panel: A device that captures sunlight and converts it into electricity.
→ Solar Energy: The energy we get from the Sun’s light and heat.
→ Wind Energy: Energy we get from moving air.
→ Clean Energy: Energy that comes from natural sources like the Sun, wind, and water and does not cause pollution.
→ Turbine: A machine that spins using wind or water to produce electricity.
→ Battery: A device that stores energy and powers small electronic items like toys or flashlights.
→ Vaastu Shastra: An ancient Indian way of designing buildings to use natural energy like sunlight and wind. It helps make homes bright, airy, and comfortable.
→ Architecture: The art and science of designing and building houses and structures.
→ The Flying Snake, living in Indian forests, can glide through the air by flattening its body.
→ The Bhadla Solar Park in Rajasthan is one of the largest solar power plants in the world.
→ Cochin International Airport in Kerala is the world’s first airport to be entirely powered by solar energy.
→ Traditional houses in India had small windows and thick walls. This kept the house cool in summer and warm in winter.
→ In hilly areas, watermills called gharaats use flowing water to grind grains.
→ The Sun is the main source of energy for life on Earth.
→ The Sun gives more energy to Earth in one hour than what all humans on Earth use in a whole year.
→ Some plants in deserts open only at night to save water and energy → smart nature tricks!
The post Energy How Things Work Class 5 Notes EVS Chapter 7 appeared first on Learn CBSE.