SciShow
Stem Cells
Hank gives you the facts on stem cells - what they are, what they're good for, where they come from, and how they're used in medicine.
SciShow Kids
Why Does Some Cheese Have Holes?
Cheese is a great snack! One of the best things about it is that there's so many different kinds: cheddar, mozzarella, provolone, gouda... the list goes on and on! But have you ever wondered why some cheeses, like Swiss, are full of...
Amoeba Sisters
Mutations (Updated)
Join the Amoeba Sisters as they explain gene and chromosome mutations, and explore the significance of these changes. This updated video has improved audio and images! Codons and the amino acids they code for is represented by standard...
Be Smart
20 MILLION Year-Old Spider!! Unweaving Spider Silk
Living things have engineered some pretty awesome materials, but I'm not sure anything measures up to spider silk. It's as strong, as stretchy, and as resilient than even humans' most advanced creations like Kevlar and steel. So how do...
TED-Ed
TED-Ed: Why is it so hard to cure ALS? - Fernando Vieira
Amyotrophic Lateral Sclerosis (ALS), also called motor neuron disease and Lou Gehrig's Disease, affects about two out of every 100,000 people worldwide. When a person has ALS, their motor neurons - the cells responsible for all voluntary...
SciShow
Manipulating plant genes...through grafting!
If you plant a seed from your orange, you might have to wait as long as 15 years to get a tree with fruit, which is kind of a bummer for the impatient types among us. Fortunately, there’s an age-old trick called grafting that can shorten...
Amoeba Sisters
Introduction to Cells: The Grand Cell Tour
Compares and contrasts prokaryote cells and eukaryote cells before exploring organelle structures and functions! Video includes the modern cell theory and plant vs. animal cell comparisons. See table of contents by expanding video...
SciShow
How Much Junk Is in Your DNA Trunk?
The human genome is 3.2 billion base pairs long and contains around 20,000 genes, but how much of that is garbage?
SciShow
Scientists May Have Found a Way to Treat All Cancers... By Accident | SciShow News
A universal cure for cancer would be a truly historic achievement in medicine, and it seems that scientists may have found it... by accident.
Bozeman Science
Protists
Paul Andersen surveys organisms in the protists. He reviews the diversity found within the domain Eukarya and explains that the Kindgom Protista is simple a junk drawer for organisms that don't fit elsewhere.
Amoeba Sisters
General Lab Safety
This Amoeba Sisters video introduces science lab safety guidelines with memorable illustrations and an accompanying handout listed under "safety". This video includes the discussion of proper lab attire, importance of proper disposal of...
SciShow
Does Psychotherapy Work?
You might’ve heard people talking about how awesome psychotherapy can be, but is it actually effective?
Crash Course
How Not to Set Your Pizza on Fire: Crash Course Engineering #15
Today we’re going to explain how exchangers...exchange heat. We’ll look at concentric tubes, finned tubes, plate heat exchangers, and shell-and-tube heat exchangers. And we’ll look at some equations to help us sort through heat transfer...
TED-Ed
TED-Ed: Got seeds? Now add bleach, acid and sandpaper - Mary Koga
For a seed to start growing, its embryo must emerge from its hard coat. In nature the embryo is aided by frost and animal digestion -- but humans can help too. Nicking, filing, and soaking the seed in hot water or acid are all forms of...
TED-Ed
TED-Ed: How do vitamins work? - Ginnie Trinh Nguyen
Vitamins are the building blocks that keep our bodies running; they help build muscle and bone, capture energy, heal wounds and more. But if our body doesn't create vitamins, how do they get into our system? Ginnie Trinh Nguyen describes...
Amoeba Sisters
Nervous System
Join the Amoeba Sisters on this introduction to the Nervous System! This video briefly describes the division of the central nervous system (including going over some general areas of the brain) and the peripheral nervous system before...
SciShow
The Problem With Those 9 Personality Types
The Enneagram, like many personality tests, isn't well backed-up by scientific research, but its popularity in spite of that can give us a window into how the human mind works.
Crash Course
Reversibility & Irreversibility: Crash Course Engineering #8
How do we design the most efficient machines and processes? Today we’ll try to figure that out as we discuss heat & work, reversibility & irreversibility, and how to use efficiency to measure a system.
SciShow
What If We Killed All the Wasps?
Unlike their friendly, flower-pollinating cousin, the bee, wasps are best known for stinging people, ruining picnics, and generally being jerks... so should we just totally get rid of them?
MinuteEarth
Are Plastics Too Strong?
The same chemistry that makes plastic tough, light and flexible also makes it nearly impossible to get rid of, because it’s hard to break those resilient chemical bonds.
SciShow
Why Perfectionism Isn’t as Good as You Think
People often think of perfectionism as a good thing, but it’s more than just a strong desire to do something well, and it can actually be a risk factor for several clinical disorders.
SciShow
Big Idea: Blood Transfusions
The idea of putting blood into a person was a radical one when it was first attempted 350 years ago, but today, more than 15 million pints of blood are donated each year in the U.S. to be used in transfusions to over 5 million patients....
Crash Course
Metals & Ceramics: Crash Course Engineering #19
Today we’ll explore more about two of the three main types of materials that we use as engineers: metals and ceramics. We’ll discuss properties of metals, alloys, ceramics, clay, cement, and glass-ceramic materials. We’ll also look at...
SciShow
Are We Ready to Edit the Fetal Genome?
Gene therapy is really complicated both scientifically and ethically. But it also has the potential to do some amazing things - like treating life threatening diseases in babies before they are even born.