Substitution reactions can have really powerful effects, both good and bad, in our bodies. You might remember substitution reactions as displacement reactions from general chemistry, but (you guessed it!) in organic chemistry they’re a...

Happy Pi Day! We are huge fans of homophones here at SciShow, so we put together a whole bunch of fun facts and tasty tips about PIES! Get it?!

The majority of us can probably agree that the sound of nails on a chalkboard is unpleasant, but why is that? Theories range from evolutionary survival mechanisms to the anatomy of the human ear. Find out more in this episode of SciShow!

Caviar or fruity ball? Whatever you like! Here’s a rundown of how to spherify your own edible bubbles and why they could help to reduce waste.

In this video Paul Andersen explains how Le Chatelier's Principle can be used to predict the effect of disturbances to equilibrium. When a reversible reaction is at equilibrium disturbances (in concentration, temperature, pressure,...

You stick cookie dough into an oven, and magically, you get a plate of warm, gooey cookies. Except it's not magic; it's science. Stephanie Warren explains via basic chemistry principles how the dough spreads out, at what temperature we...

Trigger warnings are a relatively new (and divisive) concept, but do they really help?

You may have seen posts online warning you about the dangers of eating burnt toast, but how much will that actually affect your health?

Like most allergies, you can become immune to mosquito bites, but it might not be worth it.

Your favorite TV chef might have told you to make sure you sear your meat because that nice brown crust helps seal in the moisture, but is that actually how it works? Michael explains the science of your cook out.

If you’ve been to a sporting event with a large number of people, you’ve likely seen, or even been a part of, “the wave.” But did you know that there are little fishies who do a version of the wave not for fun, but for survival?

A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other that form an insoluble compound, they suddenly fall out of solution in what's called a precipitation reaction. In this...

When molecules collide, chemical reactions can occur -- causing major structural changes akin to getting a new arm on your face! George Zaidan and Charles Morton playfully imagine chemical systems as busy city streets, and the colliding...

You might think something is so "icky" that you try avoid it, and scientists think there's a reason humans, and even some other animals, do this.

In this explosive episode of SciShow Quiz Show, Hank Green and SciShow writer Dave Loos test their knowledge of diamonds, the environment, and the many reasons why humans are very strange creatures.

We’ve discovered a planet that, for its size, is in a very strange place around it’s star! And other scientists, inspired by comets, have come up with a new way to potentially make breathable oxygen for people exploring Mars in the future.

In this video Paul Andersen explains how an overall chemical reaction is made up of several elementary steps. The stoichiometry of this equation can be predicted but the rate law must be measured. If the elementary steps of the...

If it smells like delicious buttered popcorn when you are in a middle of the forest, it’s not because there’s a movie theater nearby, but Binturongs, arboreal carnivore, might be.

Burning a marshmallow can release more energy than detonating an equal mass of TNT...so why isn't a marshmallow as dangerous?

In this video Paul Andersen explains how disturbances to a reversible reaction at equilibrium affect the equilibrium constant and the reaction quotient. For example if the concentration is changed the reaction will move to reestablish...

Maybe you have a dog or cat who greets you with a sneezing fit once you walk in the door from work. Is it possible you're the problem?

To design the Baha' Temple of South America, architect Siamak Hariri focused on illumination -- from the temple's form, which captures the movement of the sun throughout the day, to the iridescent, luminous stone and glass used to...

Flinching in response to an unexpected loud noise might not be pleasant, but it's also not a problem for most people. For one family, however, getting startled would cause their bodies to go stiff and fall.

Sugars aren’t just for munching and crunching, they also make up our genetic code! So what does it mean to find sugars INSIDE meteorites?