Be Smart
Which Life Form REALLY Dominates Earth?
Are humans really Earth's most dominant species? Let's put all of the planet's living things on a scale and see what has amassed the most mass. This week we break down the concept of "biomass" to judge Earth's living things from top to...
Crash Course
How Do Outbreaks Start? Pathogens and Immunology - Crash Course Outbreak Science
You may not realize it, but your body is like a fortress, designed to defend you from tiny foreign invaders known as pathogens. This seemingly small world is actually super diverse, and sometimes super dangerous too. That’s why in this...
SciShow
What Happens If You Don't Take out a Splinter?
Splinters are gross, but you might want to watch this before grabbing the tweezers.
PBS
When Giant Fungi Ruled
420 million years ago, a giant feasted on the dead, growing slowly into the largest living thing on land. It belonged to an unlikely group of pioneers that ultimately made life on land possible -- the fungi.
Crash Course
Old & Odd: Archaea, Bacteria & Protists - CrashCourse Biology
Hank veers away from human anatomy to teach us about the (mostly) single-celled organisms that make up two of the three taxonomic domains of life, and one of the four kingdoms: Archaea, Bacteria, and Protists. They are by far the most...
Curated Video
Fungi
New ReviewThis video outlines types of fungi, their structure, and how they are part of an ecosystem.
Visual Learning Systems
Producers, Consumers, and Decomposers
In this video students will learn how living things and nonliving things interact in ecosystems. Specific attention is given to identifying producers, consumers and decomposers. Vivid, live-action video shows these relationships in...
Science ABC
Toadstools vs Mushrooms: Are They Different?
Toadstool and mushroom are merely unscientific labels to define different varieties of fungus. Yes, the mushroom that we eat is actually a fungus! There is a popular consensus that while mushrooms are white-capped species that grow in...
Science ABC
Do bones decompose? How long does it take for bones to decompose?
Ever wonder why bones can survive hundreds of years without decomposing? This is due to the unique composition of bone. Bone is primarily composed of a very stable protein called collagen and the mineral calcium. The association between...
Science ABC
Are Mushrooms More Similar to Humans than Plants?
Until recently, all classifications of life, including the expansion from two kingdoms to five kingdoms, were based on physical observations of how things looked, even under a microscope. This is how the closeness and relationships...
Science ABC
Air Conditioning Sickness: Can AC Make You Sick?
The cold air produced by ACs is not inherently harmful. However, you may start to see symptoms of air conditioning sickness if your AC fails to restrain the bacteria, mold, fungi, dander, etc., that are thriving in the air-conditioned...
Curated Video
Infectious
An infectious disease is one caused by a biological agent such as a virus, bacterium, or fungi, that can be passed from one organism to another. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
Microorganism
Or microbe, is an organism too small to be seen by the human eye. 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
Agar
An extract of certain species of red seaweed that's used as a gelling agent in microbiology and food preparation. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Antibody
A protein produced by the immune system that attacks a harmful agent, such as a virus or bacteria. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Classification
The grouping of organisms into categories with similar features. 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
Salt: Food Preservative
Salt was discovered thousands of years ago as a way of preserving food. How does it do this? And what else does salt preserve? Chemistry - Chemical Industries - Learning Points. Food rots because of bacteria and fungi. Salt is an...
Curated Video
Factpack: Classification
Discover the systematic grouping of organisms according to the structural or evolutionary relationships among them. Biology - Adaptation And Evolution - Learning Points. A Twig FactPack Film. Open a discussion on what has been already...
Curated Video
Fungi
Discover the magical world of fungi. Neither plant nor animal, they are a separate classification of living organism. Biology - Ecosystems - Learning Points. Fungi are neither plant nor animal. Most fungi are made up of networks of...
Curated Video
Lichen: Indicator Species
Lichens exist in extreme environments where other life struggles to survive. But these tough species cannot tolerate pollution, and reflect the health of ecosystems. Biology - Ecosystems - Learning Points. Lichens are organisms that can...
Curated Video
Anaerobic Respiration: Observing Yeast's Oxygen-Free Energy Production
We use yeast to let us observe anaerobic respiration. The yeast is added to warm water and glucose. A layer of oil is placed over the solution so that no oxygen is available. The solution starts to bubble and the gas produced passes...
Curated Video
Forensics: Bog Bodies
A look at the ancient preserved bodies that forensic scientists can examine in order to gain a better understanding of our ancient past. Chemistry - Atoms And Bonding - Learning Points. Forensic scientists can help us understand our...
Curated Video
Symbiosis: Mutualism
In nature, some animals depend on another species for survival. The special relationship between sea anemones and clown fish demonstrates how creatures in the same habitat can rely on each other for defence. Biology - Ecosystems -...
Curated Video
Fermentation: The Chemical Process Behind Everyday Foods
Discover the chemical process which produces some of our most common foodstuffs, from bread to yoghurt, to wine and vinegar. Chemistry - Chemical Industries - Learning Points. Fermentation is the process of converting sugar and other...