In 2017, one in every three people still don't have access to a toilet. As part of a playlist on biology, an interesting video explains this global health topic. It describes society before toilets, disease research throughout history,...

Nurb is selling tongues. He pitches his product by showing all of the amazing tasks it can perform. Cute cartoon characters, colorful animation, and preteen-appealing humor make this clip a "terrific tool for tasteful teaching." (How's...

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...

Burp! Avoid the burn, heartburn that is! Believe it or not, heartburn takes place in the esophagus near the lower esophageal sphincter (LES), not the heart or the stomach. Find out everything you need to know about what causes...

Is gluten really bad for you? Scholars learn why gluten is important in baking by learning about its structure and investigate how it breaks down during digestion—and why some people have a hard time digesting it. Finally, they make a...

Why do people get so sleepy after eating big meals? Using a fun video about Thanksgiving food, learners explore turkey and the other foods common to Thanksgiving meals. They learn how deep frying a turkey changes the way it cooks as part...

How do bodies digest all of the parts of a hamburger? An interesting video follows a hamburger through the digestive system, showing the pathway of digestion and explaining how each of the components of a hamburger—the bun, the meat, and...

Rice is made of starches that absorb moisture, but is it enough to be harmful to birds? In true myth-buster form, a video lesson explains the science that disproves the thought that rice is bad for birds. The episode compares the...

Humans need fat for energy and nutrition, but how much is too much? A short animation shows the pathway of fat as it enters the body, breaks down through digestion, and travels for use or storage. Teaching tips offer multiple ways to...

Milk meets every single nutritional need for a baby in the first six months of life. Observe how an infant's small intestine breaks milk lactose down into a usable form of nutrition. With the help of an animation, viewers see the process...

Enzymes really know how to keep things moving along! Introduce these powerful proteins through a short video from an extensive life science playlist. Viewers learn why enzymes are specific in their jobs, important enzymes in our bodies,...

Worm feces is gold to gardeners and farmers. Earthworms have a special enzyme that allows them to break down the cellulose found in plant materials. An episode of a longer science playlist explores this process, which creates...

If you eat too many carbohydrates, they convert into fats, but if you eat too few, you become dizzy and weak due to low blood sugar. The video explains the chemical function of carbohydrates. It offers an idea of their importance and...

What does digestion have to do with aerobic respiration? Watch a video that explains the processes and systems in our bodies that allow oxygen to travel throughout.

Some foods we eat are not meant to be broken down by our digestive systems, but instead by our gut. But how can we control what our gut breaks down? The answer is simple: our diet.

It is safe to say that everything is best in moderation—including preservatives in food. Microbes and oxidation are the main reasons foods become spoiled. Thanks to preservatives, our foods end up having a longer shelf life. But what...

We are all born with one, but how many people actually know what the pancreas does? Follow along with a short video as it examines the important role this often-overlooked organ plays in digesting food and maintaining...

If humans can live without one kidney, how important can they really be? Investigate the vital role these organs play in filtering our blood, removing waste, and managing our bodies' water supply with this short animated video.

It's the heaviest organ in the human body, but exactly what role does the liver play in sustaining life? Follow along with this short video as it explores the various ways the liver filters, stores, and manufactures materials...

Nutritionist Radhia Gleis explains what metabolism is and how to assess it. Food is processed and used by the body producing waste in the end. The steps of the digestive system are explained from its beginning in the mouth to its end in...