Bozeman Science
The Digestive System
Paul Andersen starts with a brief description of feeding methods. He then details all of the major parts within the human digestive system. This tour starts in the mouth, move down the esophagus, through the stomach, small investing,...
SciShow Kids
Why Do We Burp?
Everybody does it! But why does it happen? Jessi gives you a look at your digestive system, to discover why we sometimes get a case of the burps.
SciShow Kids
Why Do We Have Saliva?
Mmmm! The smell of a batch of cookies straight out of the oven is enough to make your mouth water! But have you ever wondered why your mouth waters?! Jessi and Squeaks are here to tell you all about saliva and the many ways it helps you...
Bozeman Science
AP Biology Lab 2: Enzyme Catalysis
Paul Andersen starts with a brief description of enzymes and substrates. He then explains how you can measure the rate of an enzyme mediated reaction. Catalase from yeast is used to break hydrogen peroxide down into water and oxygen. He...
SciShow Kids
How Compost Is Made: A Field Trip!
Composting is a way to turn scraps of food you aren't going to eat anymore into healthy soil for your garden! But how does food turn in to dirt?! Mister Brown and Squeaks take a trip to SoilCycle, a place that makes compost in their...
MinuteEarth
MinuteEarth Explains: Poop
In this collection of classic MinuteEarth videos, we dive into one of our favorite topics, well at least our #2: poop.
TED-Ed
TED-Ed: Biofuels and bioprospecting for beginners - Craig A. Kohn
Biofuels can provide energy without the reliance on environmentally harmful fossils fuels -- but scientists are still searching for a plentiful source. Craig A. Kohn demonstrates how cellulose, the naturally abundant tough walls of plant...
SciShow
Why Can't You Digest Grass?
You've probably seen cows enjoying a nice mouthful of grass, but why can't we do the same?
SciShow
Getting To Know Cows Inside and Out | Compilation
From being able to eat grass, to changing the weather with their burps: Cows are incredible creatures!
Bozeman Science
Stratospheric Ozone
In this video Paul Andersen explains how stratospheric ozone protects humans from ultraviolet light. He explains how stratospheric ozone is formed when diatomic oxygen absorbs an ultraviolet photon and is split into two free oxygen...
SciShow
The Chemistry of Fried Food
You know it, and you love it. Fried food! But there’s more to fried dishes than just plopping food into hot oil. You have to know what’s up with the food you’re cooking and what oils will work best for you dish.
SciShow
What Happens to My Wool Sweater in the Washer?
Be careful with your wool. Unless you want a nice piece of felt with some holes in it.
Bozeman Science
The Rate Law
Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-order reactions are described as well as the overall rate law of a reaction. The rate of a reaction...
SciShow
Does Wine Really Need to 'Breathe'?
Whether it's from a box or a bottle, letting your wine 'breathe' can actually make a difference in its taste.
SciShow
Genetically Engineered Cancer-Fighting Algae
Learn how scientists are fighting cancer... with algae!
Bozeman Science
Operon
In this video Paul Andersen describes the elements of an operon. The promoter allows the RNA polymerase to transcribe the required genes. The operator and repressor regulate the expression of the genes by blocking the RNA polymerase. The...
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!
Bozeman Science
Gene Regulation
Paul Andersen explains how genes are regulated in both prokaryotes and eukaryotes. He begins with a description of the lac and trp operon and how they are used by bacteria in both positive and negative response. He also explains the...
Crash Course Kids
The Dirt on Decomposers
We've talked about food chains and how energy moves through an ecosystem, but let's take a step back and see how everything starts... and ends. Decomposers! This first series is based on 5th grade science. We're super excited and hope...
Curated Video
Hydrolysis of carbohydrates
Hydrolysis is a water-based chemical reaction, where water is used to break down a specific substance or molecule. In this video, we will look at a specific type of hydrolysis - hydrolysis of carbohydrates. We will learn how water is...
Curated Video
Catabolism
One of the major processes in metabolism, involving the breakdown of large molecules to smaller ones with the release of energy. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Amylase
An important digestive enzyme which breaks down starch into sugar. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
Biochemistry
The study of chemical reactions in living organisms, the chemistry of life. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Thermal decomposition
The chemical breakdown of a compound into simpler substances when heated. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...