For a long time, scientists have debated whether dinosaurs were warm-blooded or cold-blooded. Turns out, they were probably somewhere in between.

For some people, fava beans can be deadly. What is it about this little legume that makes it so?

Explore some examples of specialized plant and animal cells with the Amoeba Sisters! Video explains how specialized cell structure suits their function. Table of Contents: Intro 00:00 Specialized Cell Defined 0:26 Animal and Plant Cells...

Join the Amoeba Sisters in their introduction to the circulatory system and follow the pathway of blood as it travels through the heart! This video explains the importance of blood, arteries, and veins, and it also introduces basic heart...

Learn how to set up and solve a genetic problem involving multiple alleles using ABO blood types as an example!

One of the most commonly googled questions in the world is why feces can be green. Well, Quick Questions has the answer!

You may have heard the rumor. Every seven years your body becomes a whole new person. But is there anything to this? Check out this SciShow episode to find out!

Paul Andersen explains the importance of blood types in blood transfusions. He starts with a brief discussion of blood antigens and antibodies. He describes how the ABO differs from the Rh blood type. He shows you how to solve simple...

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Twig - Ciencias generales

The circulatory system is a vast, complex network of blood vessels that serve as highways for transporting blood which contains life-sustaining molecules, such as nutrients, gasses, hormones and waste products, to the various organs of...

A white blood cell that helps protect the body by engulfing and absorbing harmful bacteria, dead or dying cells, waste material, or other foreign bodies in the bloodstream and tissues.
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A substance in which the concentration of oxygen is elevated is said to be oxygenated.
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Key scientific terms defined in just 60 seconds using stunning images and concise textual...

A protein found in red blood cells that binds and transports oxygen in the blood.
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Key scientific terms defined in just 60 seconds using stunning images and concise textual...

To make an object or image appear larger than its actual size.
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Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

Copper has been used by man for thousands of years.



Chemistry - Periodic Table - Learni

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Find out how humans can overcome biological responses to hold their breath underwater for several minutes.



Biology - Human Body - Learni

ng Points.

When we hold our breaths, our lungs signal the brain to...

In USA in the 1970s, 200,000 tonnes of lead was added to petrol every year. Now leaded petrol for cars is banned. Discover the dangers of tetraethyl lead in petrol. Chemistry - Chemical Industries - Learning Points. Midgley Junior added...

Scabs help your skin to heal when you cut yourself.
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Explore the substances that make up blood and why it is classed as a mixture.
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Learning Points
Mixtures do not react...

Este video explica cómo y por qué se forman los coágulos de sangre. La coagulación evita que perdamos mucha sangre y protege nuestro cuerpo de patógenos. Cuando un vaso sanguíneo se daña, las plaquetas se adhieren al área lesionada,...

Ever wondered what your blood is made of? Red blood cells, white blood, platelets and plasma! Learn what each of these components does and how we can replace it with artificial blood.

Food Detective Berry Blue talks about the delicious and nutritious fruit group. She describes the way fruit grows and how fruit can be purchased fresh, canned, or frozen. She lists several delicious ways to serve fruits, and the various...

In this video, we explore the purpose and components of blood. We learn that blood carries oxygen, nutrients, and waste products throughout the body. This video is part of the 10-part series, Circulation and Respiration.

This video provides a basic understanding of blood composition and its essential components. It explains the role of plasma, red and white blood cells, and platelets in the body. Blood and Circulation part 5/9