Outdoor Wallpapers News

Outdoor Wallpapers wallpapers


How it works

how the body work

All the organs and systems of your body work together. When they work correctly you move, you fight off germs and diseases, you heal, you learn, you grow, and you age. In other words, you live. ... read more

what is chemistry

Chemistry is the study of substances and the changes that happen to them. Substances are things like food, clothes, and medicine. Chemistry is very important. Plastic bags and shoes with rubber soles would not exist without chemistry. Fuels for cars, airplanes, and rockets would not exist without chem... read more

how were hieroglyphics finally decoded

Hieroglyphics proved diffi cult to work out, despite hundreds of years worth of attempts. The Rosetta Stone, discovered in the city of Rashid (Rosetta), Egypt, in 1799, provided final clues. The stone’s text was in two languages but three scripts: Greek, hieroglyphic and demotic (a cursive hieroglyp... read more

stars

On a clear night, you can see thousands of stars shining in the sky. From Earth, they seem to be small points of light. Yet many of them are larger than our Sun. There are far more stars in space than you can see with the naked eye. There are so many that you could never count them all. Our Sun is a m... read more

why does mixing alcoholic drinks make you ill

There are lots of theories on why mixing different alcoholic drinks might make you sick. There are different chemicals in different types of alcoholic drinks that infl uence the speed of absorption and the severity of a hangover. These include bubbles, sugar and compounds known as ‘congeners’, and... read more