Where Does Oil Come From?
All of the petroleum, or oil, we get from oil wells was formed from the remains of plants that lived and died in the shallow seas that cover
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
How Does the Sound Come from a Record?
How Does the Sound Come from a Record? The vibrations of sound made by a person’s voice or a musical instrument are recorded in the wavy gro
Why Must a Fever Thermometer Be Shaken?
Why Must a Fever Thermometer Be Shaken? A fever thermometer is made so that the mercury in the tube will remain at the highest point it regi
Did Unicorns Ever Exist?
Did Unicorns Ever Exist? The unicorn is a mythical animal that never existed, although many people once believed that it did. These animals
How Do Apple Blossoms Turn into Apples?
How Do Apple Blossoms Turn into Apples? When you eat an apple, you are eating, the fleshy seed case of the tree. Before an apple tree can be