Why Does Ice Float?
Ice is able to float because it is lighter than water. Water greatly expands as it freezes into ice. Ten quarts of water produce about eleven quarts of ice. Thus, ice...
Read More
What Is Chalk?
Chalk is a soft, white limestone. The chemical composition is calcium carbonate with minor amounts of silt and clay. It was formed from the shells that belonged mostly...
Read More
Do Insects Have Bones?
Do Insects Have Bones? Insects do not have bones. The outer part of an insect’s body is made up of a tough material, which is called chitin. This material is the...
Read More
What Makes My Teeth Hard?
Although it looks like you can see a lot of your teeth, all you really see is the hard exterior known as the crown. The crown is covered with enamel which is like body...
Read More