What Puts the Chew in Chewing Gum?
The “chew” in chewing gum is provided by a chewy plastic mixed with natural gums from trees. At the chewing-gum factory, the chewy gum base
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
What Makes Plant Leaves Green?
What Makes Plant Leaves Green? The green we see in leaves comes from a green substance called “chlorophyll,” which the plant uses in mak
How Do We Measure the Height of a Mountain?
How Do We Measure the Height of a Mountain? Most of our figures for mountain heights were obtained with an “altimeter.” This is kind of baro
What Is Local Mean Sea Level?
What Is Local Mean Sea Level? Sea level is the base level for measuring elevation and depth on Earth. Because the ocean is one continuous bo
Why Do Jellyfish Sting?
Jellyfish sting in order to get food. A jellyfish is a simple, primitive sea animal with a jelly-like body. Jellyfish live in the ocean and