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forces that shape the earth

Many forces can form, or shape, the Earth. Some of these forces come from deep within the ground. Volcanos and earthquakes cause major changes to the landscape. Other changes occur because of natural forces on the surface. Water and wind shape the planet every day. Human activity also plays a role in ... read more

anatomy of a spanish conquistador

How a small army of Spaniards brought an entire civilisation to its knees. ... read more

poisonous plants

They may look harmless, but some species of flora can be fatal. It takes four castor seeds to kill a human, but 80 to kill a duck. ... read more

how to make a soap powered boat

Propel a paper boat using nothing more than washing-up liquid! ... read more

the life cycle

The stages of human life are often described as a life cycle. For each individual, however, life is a straight line. Like a story, it has a beginning, middle, and an end. The earliest stage of life is a single cell. The cell divides and, with instructions from genes, forms different tissues. These tis... read more