Instructional Video4:32
SciShow

When Sled Dogs Saved an Alaskan Town

12th - Higher Ed
In 1925, 20 teams of sled dogs braved the harsh Alaskan winter to carry a package of diphtheria antitoxin over 1000 km to save a small town from a deadly outbreak!
Instructional Video2:59
SciShow Kids

Meet Your Tonsils!

K - 5th
Has your doctor ever asked you to stick out your tongue and say "ah"? They're probably checking out your tonsils! But what are your tonsils, and what do they do?
Instructional Video
Khan Academy

Khan Academy: What Is a Tonsillectomy?

9th - 10th
This video describes the function of the tonsils and possible reasons for removal (tonsillectomy). [7:53]
Instructional Video
Khan Academy

Khan Academy: Tonsillopharyngitis Complications, Diagnosis, and Treatment

9th - 10th
This video explains the illness strep throat, caused by the streptococcal bacteria. Learn what causes strep throat, diagnosis, complications, and treatment. [10:29]