Energy

Energy is the power that makes things happen all around us. It helps us move, keeps lights shining, and lets plants grow. Every living thing and machine needs energy to work. Without energy, there would be no motion, sound, or heat in the world. Scientists say that energy cannot be created or destroyed — it only changes from one form to another.

There are many types of energy. The most common ones are kinetic energy (the energy of moving things) and potential energy (the stored energy an object has because of its position). For example, when you lift a ball, it has potential energy, and when you drop it, that energy becomes kinetic energy. Other kinds include light energy, heat energy, electrical energy, sound energy, and chemical energy found in food and fuel.

Energy comes from different sources. Some are renewable, which means they can be used again and again, like sunlight, wind, and water. Others are non-renewable, like coal, oil, and natural gas, which can run out if we use too much. Many scientists are working to find cleaner and safer ways to make energy so we can protect the earth from pollution and climate change.

In our everyday life, we use energy all the time. When we eat, our bodies turn food into energy so we can move and think. Cars use energy from gasoline or electricity to drive. Homes need energy to heat rooms, cook food, and power computers and TVs. The sun is our main source of energy—it gives light and warmth to the whole planet and helps plants make food through a process called photosynthesis.

Energy can be transferred or transformed. This means it can move from one place to anothphotosynthesists form. For example, when you plug in a lamp, electrical energy turns into light and heat. When you ride a bike downhill, potential energy changes to kinetic energy. These changes happen constantly, everywhere.

Because energy is so important, people are learning how to use it wisely. saving energy by turning off lights, using less water, and choosing energy-efficient machines helps protect the environment. The more we understand about energy, the better we can care for our planet and make sure there’s enough power for everyone in the future.