Nature and Science

A joule (J) is a small unit of energy. More commonly, we measure energy in kilojoules ...

Energy from the Sun is stored in the leaves of plants, but it is also possible to ...

Our energy comes from the Sun — but not directly. Plants convert sunlight into chemical ...

Coal, oil or gas may be used to fuel a power station. All of these are fossil fuels, formed ...

Energy is what makes things happen. Nothing can live, move and grow, or give off light, ...

A joule (J) is a small unit of energy. More commonly, we measure energy in kilojoules ...

Energy from the Sun is stored in the leaves of plants, but it is also possible to ...

Our energy comes from the Sun — but not directly. Plants convert sunlight into chemical ...

Coal, oil or gas may be used to fuel a power station. All of these are fossil fuels, formed ...

Chemical energy is released when chemical reactions take place. It is stored in many ...

As there are billions of planets in our universe, it is likely that some of them could ...

The saying that there is nothing new under the Sun is strangely true. The stuff that makes ...

Wind, moving water and sunshine are always to be found somewhere on the Earth. All of these ...

Living things can grow and reproduce themselves. Given the right conditions, they can ...

In many parts of the world, life expectancy — the number of years that a person can expect ...