Which planet is the biggest?

Jupiter is the biggest and is truly giant. It is large enough for 11 Earths to fit across its face and 1,300 to fit inside it. There are four giant planets in our Solar System. The next biggest is Saturn, followed by Uranus, and Neptune. They are also known as ''gas giants'' because of their colorful, ice-cold gas atmosphere.

Jupiter is shrinking. When it was young it was five times its present size. It is cooling and getting smaller by about 2cm (0.8 in) a year.ha

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WHY IS BLOOD RED?

Blood is red because most of its cells are packed with a red-substance called haemoglobin. Using this, the red blood cells pick up vital oxygen and deliver it to the body's cells. To achieve this and other roles, such as removing waste, blood is pumped along blood vessels by the heart.

WHAT STARTED THE AGE OF DISCOVERY?

The desire of European merchants to control the trade in luxury goods from Asia- silk, cotton, and spices- combined with the technology advances in shipbuilding and navigation led to a wave of long-distance voyages of exploration that redrew the map of the globe between the 15th and 18th centuries.

DO THE CONTINENTS REALLY MOVE?

Yes, the continents and oceans are constantly moving on the Earth's crust. More than 200 million years ago,the continents were joined in one huge land mass, but over millions of years this drifted and separated into the seven main continents we know today: Asia, Africa, Europe, Australia, Antarctica, North America, and South America. 200 millions years ago Many of the continents are locked together in a landmass named Pangaea. 100 millions years ago Divergent plates begin to open up the Atlantic Ocean. South America drifts west, Antarctica heads for the South Pole, and India creeps towards Asia Today India is in place after colliding with the Eurasian mainland. Greenland separates from North America, which has a land bridge with South America, Australia drifts in the Pacific Ocean

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