More science projects and experiments
A collection of science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 5 & 6
Teeth - Types and Anatomy
How the Body Works : The Permanent Teeth
The Structure of a Tooth
Every school biology class should see this clip. It starts by showing a normal tooth. As the magnification is increased you can see how the enamel surface is not smooth but consists of a labyrinth of fissures and crystals. You can really understand why keeping food particles out of these fissures is important.
Your teeth are designed to last much longer than you are. Enamel is the toughest material living organisms are able to produce and is incredibly resistant. Archaeological digs have found skeletons several thousand years old, with healthy teeth still intact.
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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