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how to make a soap powered boat

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

what is life

Look around you. All the stuff, or matter, in the world is either living or non-living. Stuff such as rocks, metals, plastic, water, and air are non-living. ... read more

where did the sand in the sahara desert come from

The sand in the Sahara is a result of rock erosion and weathering. ... read more

why do computers use binary code

The ones and zeros of binary code are the native language of computer chips. ... read more

10 cool things we learned this month

1. Primates like to get tipsy ... read more