How Can a Fly Walk on the Ceiling?
How Can a Fly Walk on the Ceiling? A fly can walk across ceilings because it has sticky feet. Each of the fly’s six feet are equipped with tiny claws and hairy...
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Where Does Gasoline Come From?
Where Does Gasoline Come From? Most gasoline is obtained from crude oil or petroleum, the oil that comes from oil wells. Crude oil is a fossil fuel. That means it was...
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How Do Snails Get Their Shells?
Snails usually begin to grow their protective shells before they hatch. The common garden snail hatches from a tiny round egg. Hidden under the young snail’s shell is a...
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Why Do Plants Have Sap?
Why Do Plants Have Sap? Sap is the liquid that enables trees and other plants to live and grow. The roots of a plant draw water, along with dissolved minerals, from the...
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What Other Animals Produce Milk Fit for Human Consumption?
What Other Animals Produce Milk Fit for Human Consumption? Most of the milk children around the World drink come from one animal: the humble dairy cow. If you’ve...
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