TellMeWhy

A wonderful and marvelous collection of answers to intriguing questions everyone ask about the world covering almost every subject, from science and history to art, language, mathematics, technology, and homeschooling

why do birds molt
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Why Do Birds Molt?

Birds molt because their feathers wear out, as clothes do, and need to be replaced. The process is called “molting.” Birds molt their feathe

what is a gourd
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What Is a Gourd?

Did you ever see a fruit with rind hard enough to use as a cooking pot? A gourd is such a fruit. Gourds are ornamental fruits that are close

what is gravity
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What Is Gravity?

When you toss a ball into the air, it comes down because it is pulled to earth by gravity. Gravity is a force that pulls all things on the e

what is cement made from
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What Is Cement Made From?

What Is Cement Made From? Cement is made from a mixture of lime, clay, silica, iron and aluminum minerals. Limestone is the most important s