WHERE DOES ENERGY COME FROM?

Energy is what makes things happen. Nothing can live, move and grow, or give off light, heat or sound, without energy. There are many different kinds of energy, but nearly all the energy on our planet comes, directly or indirectly, from the Sun.

The energy that cycle through the systems of Earth comes from two locations. The Sun radiates huge amounts of energy. Only a small portion of that energy hits the Earth, but it is enough to light our days, heat our air and land, and create weather systems over the oceans. Most of the energy you will learn about comes from the Sun.

The Earth also gives off energy. There is a molten outer core of iron (Fe) and nickel (Ni) that radiates heat and creates a magnetic field that surrounds the planet. Current evidence suggests that the inner core is 6,000 degrees Celsius (10,800 degrees Fahrenheit). The asthenosphere and upper mantle also radiate heat from the interior of the planet. Even without the heat of the Sun, the Earth would be warmer than space or a planet with no molten core.

Unless you live on a volcano or a hydrothermal region, the Sun’s energy will affect your life more than any energy from inside the planet.

You can find energy in electricity, magnetism, kinetic energy, potential energy, springs and different states of matter. Energy is not something you can hold or touch. Energy exists as a property of matter and can be found in many places ranging from the heat from Earth’s core to incoming radiation from the Sun.

Picture Credit : Google