TED-Ed
TED-ED: What triggers a chemical reaction? - Kareem Jarrah
Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these reactions happen in the first place? Kareem Jarrah answers this question...
SciShow
10 Fantastic Fungi Superpowers
Join Hank Green to learn ten weird, scary, and amazing things fungi can do!
Chapters
MAKE YOU HALLUCINATE
0:50
psychotherapy
1:43
Claviceps purpurea Credit: Dominique Jacquin
2:08
SALEM WITCH TRIALS
...
SciShow
Terraforming: Can We Turn Mars Into Earth 2.0?
Are there ways to terraform Mars -- that is, make it habitable for humans? Some scientists think so. They have big plans, but they also face some big obstacles.
SciShow
3 Ways We Could Transform the Future of Food
As the population grows, the demand for food is only going to increase, but luckily, scientists are already working to solve this problem.
Bozeman Science
Anaerobic Respiration
Paul Andersen explains the process of anaerobic respiration. This process involves glycolysis and fermentation and allows organisms to survive without oxygen. Lactic acid fermentation is used in animals and bacteria and uses lactate as...
Bozeman Science
Why do candles burn?
Paul Andersen explains how paraffin vapor combusts in a candle. He also describes energy and mass conversion and almost burns himself.
Bozeman Science
Interstitial Fluid
Paul Andersen explains the importance and location of interstitial fluid. He describes both the hydrostatic and osmotic pressures that move fluid between the interstitial fluid and the capillary. He also explains the major function of...
SciShow
When You Burn Fat, Where Does it Go?
When you burn fat, where does it go? Many people, even some doctors, think it's just "burned up." But that's not possible! Find out where your fat really goes!
MinuteEarth
The Cruel Irony Of Air Conditioning
The technology we use to keep cool is heating the world in a vicious feedback cycle, so we need to improve it and use it less.
SciShow
The Fern That Cooled the Planet
Over its lifetime, the Earth has seen plenty of climate change. About 50 million years ago the planet experienced extreme cooling, and all from a little fern.
Bozeman Science
Stoichiometry
In this video Paul Andersen explains how stoichiometry can be used to quantify differences in chemical reactions. The coefficients in a balanced chemical equation express the mole proportions in that reaction. These values can be used...
SciShow
The Science of Alcohol: From Beer to Bourbon
Alcohol has been an important part of human culture for a very long time, and from the basic process, we've figured out how to create a wide variety of alcohol beverages!
SciShow
Studying Supernovas From the Bottom of the Ocean
Stars blowing up is a surprisingly common occurrence, but who would have thought to search the bottom of the ocean if you were trying to study them?!
Bozeman Science
Limiting Reactants and Percent Yield
Mr. Andersen explains the concept of a limiting reactant (or a limiting reagent) in a chemical reaction. He also shows you how to calculate the limiting reactant and the percent yield in a chemical reaction.
TED Talks
Asmeret Asefaw Berhe: A climate change solution that's right under our feet
There's two times more carbon in the earth's soil than in all of its vegetation and the atmosphere -- combined. Biogeochemist Asmeret Asefaw Berhe dives into the science of soil and shares how we could use its awesome carbon-trapping...
SciShow
The Most Incredible Snowfall on Earth Occurs Deep Underwater
Deep in the ocean, fluffy bits of organic matter fall like snow. But this marine snow isn’t just pretty; it’s an essential part of our ocean food webs and our global climate!
Bozeman Science
The Chloroplast
In this video Paul Andersen explains how the chloroplast in plants harnesses power from the Sun to form high energy molecules like glucose. The structure of a chloroplast as well as a brief discussion of the light reaction and Calvin...
Bozeman Science
Concept 5 - Matter and Energy
In this video Paul Andersen explains how matter and energy flow and cycle through systems. He starts by explaining how energy and matter input and output will always be conserved. He addresses the many misconceptions surround energy...
Bozeman Science
The Cell Membrane
Paul Andersen gives you a brief introduction to the cell membrane. He starts by describing amphipathic nature of a phospholipid and how it assembles into a membrane. He gives an overview of the fluid mosaic model inside cells. He...
PBS
The Age of Giant Insects
Insects outnumber humans by a lot and we only like to think we're in charge because we're bigger than they are. But insects and other arthropods weren't always so small. About 315 million years ago during the Carboniferous Period, they...
Crash Course
Geographies of the Future: Crash Course Geography
In our final episode of Crash Course Geography we're going to take a look towards the future, and to do that we'll need to revisit our fundamental geography tools: space, place, and human-environment interactions! We'll talk about the...
SciShow
IDTIMWYTIM Organic
In the world of chemistry, an "organic" compound is often described as anything with carbon in it, and "organic chemistry" is the study of carbon compounds, but there is actually no single definition of what "organic" means in chemistry,...
Crash Course
Solutions: Crash Course Chemistry
This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar...
Bozeman Science
Concept 4 - Systems and System Models
In this video Paul Andersen explains how systems can be used to understand phenomenon in science and create better designs in engineering. He starts by defining the characteristics of a system and describes how system models can be used...