Crash Course
Lymphatic System
Learn about the lymphatic system and its role in maintaining homeostasis in the 44th video in a series of 47. The narrator shows learners the anatomy of the lymphatic system and its role in supporting the cardiovascular system. He then...
Crash Course
Immune System (Part 2)
Scientists are creating an experimental vaccine for the Ebola virus, which in clinical trials, is working. Such vaccines are the topic of a video about the adaptive immune system. The narrator discusses how a body reacts to pathogens in...
Crash Course
Reproductive System – Pregnancy and Development (Part 4)
A uterus grows to more than 500 times its original size over the course of a pregnancy. The 43rd video in a series of 47 focuses on pregnancy and embryo development. The narrator begins with fertilization, discussing cell divisions that...
Crash Course
Immune System (Part 1)
A lack of good sleep weakens your immune system by making you more susceptible to infections and making recovery time longer. Video 45 in a series of 47 focuses on the immune system. Pupils hear how the body defends itself, from its...
Crash Course
Immune System (Part 3)
Who loves their immune system ... antibody? Antibody? The last video in a series of 47 takes a look at the cellular immune system. Learners see how specific cells in the body attack other body cells that are infected with pathogens. To...
Crash Course
Joints
Ligaments are the tough, fibrous connecting tissue between bones that form joints. Explore this connecting tissue with the 20th video in a series of 47 videos on the human body. The narrator first reviews the anatomy of the skeleton and...
Crash Course
Blood – There Will Be Blood (Part 2)
Since 2004, blood doping in cycling has dropped by 50 percent. The video opens with a narration about blood doping and then focuses on the structure of blood and how its parts work to keep the body alive. Classes learn about the...
Crash Course
Metabolism and Nutrition (Part 2)
The 37th video in a series of 47 about the human body delves into metabolism. Scholars review cellular respiration and see how it, ATP, and glycolysis play a role in metabolism and how all of this relates to sugar levels in the body.
Crash Course
Urinary System (Part 2)
The narrator of this video details the urinary system by looking at how bodies regulate the production of urine and how urine is stored and excreted from the body. The narrator finishes by discussing the nervous system's role in the...
Crash Course
Reproductive System – Female Reproductive System (Part 1)
Pupils learn about menstruation and the female reproductive system in the 40th video of 47. Beginning with the anatomy and moving into hormones and ovulation, the narrator teaches an abundance of vocabulary and information regarding...
Crash Course
Respiratory System (Part 2)
Hemoglobin which is red, carries oxygen in RBC, and is responsible for the color of our blood. Video 32 in a series of 47 focuses on how your blood exchanges oxygen and carbon dioxide to maintain homeostasis. Scholars see how hemoglobin...
SciShow
Helium
The helium in a balloon comes from the radioactive decay of the elements thorium and uranium. Video two in this series of 48 explores the element helium. The narrator discusses how humans use it, where it is found, how the United States...
SciShow
Caffeine!
Caffeine is a mild stimulant for the nervous system and in moderation, is not harmful to the body. The narrator discusses sources of caffeine, its chemical make-up, and what it does inside the human body. He also shares the recommended...
SciShow
Strontium: It Knows Where You've Been
Humans ingest approximately 1-5 mg of strontium everyday! An interesting video describes how scientists use the element strontium to learn about people. The narrator explains where strontium is found and how it gets into and builds up...
SciShow
How to Make a Lemon Battery
Something in your refrigerator—something you can eat—can turn chemical energy into electrical energy! Here is an intriguing video that shows how to make a lemon battery. With simple supplies, the narrator makes the battery and then...
SciShow
The Deal with Fat
Fats are essential to a balanced diet and help bodies use certain vitamins as well as maintain healthy skin and hair. While watching the video, learners explore fat, which is certainly talked about a lot in terms of health. The narrator...
SciShow
Why Does Water Go Stale Overnight?
There are many people who simply don't like the taste of water, whether served hot, cold, or fresh ... so what about day-old water? The video explores why drinking water that sits out overnight tastes stale to some people the next...
SciShow
9 Futuristic Materials
Do invisibility cloaks exist? A cool video features nine materials that seem futuristic but actually exist. From aerogels to invisibility cloaks to unique glass, the narrator discusses each new material and their incredibly unique...
SciShow
Meet the 4 Newest Elements!
Scientists keep pursuing heavier elements in the hopes of finding a stable and useful element for practical purposes. Hopeful they've found one, the narrator explains the four newest elements that were added to the periodic table in...
SciShow
How Do Toys Glow in the Dark?
The composition of teeth are such that when exposed to a black light, they absorb the UV light and glow! A radical video explores how different objects glow in the dark. The narrator discusses how different types of chemicals, called...
SciShow
What's the Difference Between Baking Powder and Baking Soda?
During World War II, there was a shortage of cream of tartar and other baking products, so baking soda was introduced as an alternative. A fascinating video explores how people used to make breads and some takes a look at some of its...
SciShow
The Chemistry of Fried Food
Foods are fried in oils, which are basically a fat that is a liquid at room temperature. Another great video about the chemical reactions in cooking, this one explores frying food. The narrator explains that from the appearance of...
SciShow
Oxygen is Killing You
Prevent cell destruction from free oxygen in your body by eating antioxidants such as blueberries, pecans, cranberries, and dark chocolate. An interesting video discusses the dangerous side of oxygen. From rust to free radicals, viewers...
SciShow
Why is my Whiteboard so Dirty?
Dry erase markers work on desks, doors (made of shiny particle board), and even mirrors! A funny video explores why dry erase markers leave behind marks when used. The narrator explains what the markers are made of, specifically the...