TED-Ed
What Causes Bad Breath?
Onions, garlic, and coffee can all have unfortunate effects on your breath, but what is the real cause of halitosis? Follow along with this video as it investigates how the bacteria that live in our mouths are responsible for these...
Periodic Videos
Mercury
For many years, mercury was used in thermometers, dental fillings, and fluorescent lights. As scientists better understand the toxicity of this liquid metal, other materials replace these uses for mercury. Young scientists learn about...
Nemours KidsHealth
How the Body Works—Teeth
In the setting of a variety show, Nurb sings onstage about human teeth. He goes through the progression of how they grow, when they are lost, and when wisdom teeth come in. He chirps about the different types of teeth and what roles they...
The Brain Scoop
A Bear Skull
What can you learn about a bear by examining its skull? Take an impromptu look at bear anatomy with a video from an extensive mammals playlist. Scientists examine the skull's teeth and compare them with those of a younger bear to...