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soil salinity - when soils have high salt levels that have adverse effects on plants

Hank squares off against the host of SciShow Kids, Jessi Knudsen Castaneda, to match wits about chemistry, evolution, and how babies are weird!

While astronomers are busy searching for life beyond Earth, they’ve also started asking another question: If life seems so difficult to find, then why is our world so full of it? One answer might be overhead right now: the Moon!

In 1901, David Hänig published research that led to what we know today as the taste map: an illustration that divides the tongue into four separate areas. It has since been published in textbooks and newspapers. There is just one...

An essential part of engineering is engineering design. Today we’ll see how design synthesis helps you put together the components of a process and decide what techniques are needed to solve your problem. We’ll explain the need test...

Gargling with warm saltwater for a sore throat is a remedy commonly known and loved by doctors, and there is some evidence to back it up, but it’s not a cure.

Nuclear weapons are the most destructive things we’ve ever created, but it turns out there’s a way to make them even deadlier…

What's salty and cold and cool as heck? Brinicles, a rarely seen undersea phenomenon the combines ice and saltwater to become every sea star's worst nightmare! Actually, they're not that scary, just awesome. Hank explains within.

In this video Paul Andersen explains the difference between chemical and physical processes. Chemical processes occur when bonds are broken and reformed. Physical processes occur when intermolecular forces are broken and reformed. A...

SciShow News gives you some wet and weird developments from around the solar system, including new insights about what liquid lurks under the surface of Titan, and a sweaty comet that's been spotted on its way toward the sun.

Algae plus salt water equals ... fuel? At TEDxNASA@SiliconValley, Bilal Bomani reveals a self-sustaining ecosystem that produces biofuels -- without wasting arable land or fresh water.

There are creatures who get some super important and recognizable part of their biology from their diets.

Humans are fascinated by shiny stuff. Not only do we find these things attractive, but we also tend to perceive them as being high quality. Well, turns out this infatuation may be related to our evolutionary relationship to water.

If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?

Those bright spots on Ceres? We've got some new insight into what they might be! Also, the Geminids meteor shower is coming up and will peak on December 13-14.

So, moose licking cars in winter is a thing, if you live in a place that has both moose and winter. But why on earth do they do this?!

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...

Not everyone gets a winter as cold (or at the same time) as we do at SciShow, but no matter where you live, you may have wondered why venturing out into the cold often makes you have to pee more often.

MSG, or monosodium glutamate, got a bad rap in the 1960s when people started complaining of "Chinese Restaurant Syndrome," but that bad reputation was fueled more by xenophobia than science. Turns out, it's just delicious.

Scientists have taken a look at the underground lake found on Mars in 2018, and it might not be the only one! Plus, new clues might help us understand why the Sun’s atmosphere is so much hotter than the surface!

Jumping into a refreshingly cold body of water on a hot summer day can feel wonderful, except for your nose. Why does it hurt so much when you get water up your nose?

What's the key to using alternative energy, like solar and wind? Storage -- so we can have power on tap even when the sun's not out and the wind's not blowing. In this accessible, inspiring talk, Donald Sadoway takes to the blackboard to...

The weather is warming up where Jessi lives, which means its time for some cool treats! Join Jessi and Squeaks and learn how to whip up some tasty vanilla ice cream!

From pancakes to ice cream, salt goes in so many things to make them taste better! But what is it and where does it come from?