The endocrine system is composed of glands that produce hormones to affect changes in distant target organs. It is crucial in maintaining homeostasisbalancein the body. There are seven major endocrine glands scattered throughout the...

Light is affected by black holes because of the theory of general relativity, which states that any massive object warps the spacetime around it. Since a photon travels by the shortest distance between two points, light appears to bend...

Quantum entanglement is a physical resource, like energy, that is possible between quantum systems. When a coin spins on a flat surface, its in a state of superposition between its two faceshead and tails. Similarly, electrons in their...

Archimedes principle states that if an object is submerged in a fluid, then the buoyant force acting on it is equal to the weight of the fluid displaced by that object. Buoyant force exists because pressure increases as an object goes...

A molecule made up of a relatively short chain of amino acid building blocks.
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The international standard unit of electric charge.
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A class of subatomic particles that includes neutrons and protons.
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A unit of pressure widely used for expressing atmospheric pressure.
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The SI unit of power, the rate at which energy is converted or work is done.
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Generally refers to a compound that contains carbon bonded to hydrogen and is usually associated with the carbon molecules made by living organisms.
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The unit of inheritance in organisms, generally consisting of a piece of DNA that encodes the production of a specific protein.
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The building blocks of all matter, being the smallest unit that retains the chemical properties of an element.
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SI is the International System of Units.
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A self-sufficient celestial body that is in orbit around a star.
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The capacity of a system or a body to do work.
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A substance that reacts with an acid to form a salt and water.
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The SI unit of frequency, one hertz is equal to one cycle per second.
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The force of gravity acting on a mass, measured in newtons. On Earth, gravity exerts a force of just under 10 newtons per kilogram. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...

The most basic unit in the classification of types of organisms. 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...

Any living system, such as a plant or animal, that can respond to stimuli, reproduce, grow, and can maintain a stable internal condition in a changing environment. A Twig Science Glossary Film. Key scientific terms defined in just 60...

Discover the differences between lakes, ponds, and springs, and learn how each forms. Explore how lakes often have deeper waters while ponds are shallower, and see how springs bring groundwater back to the surface, creating fresh...

What is a Thought Leader and How Can You Become One? The truth is, I don't like terms like "thought leadership" or "personal brand," but they are relevant to many professionals today.

Discover how readers can use definition clues, signaled by words like "is" or "means," to directly understand the meanings of unknown words within a sentence. Learn how mood and tone clues, indicated by the atmosphere and the author's...

In 793, Vikings launched a brutal raid on the monastery at Lindisfarne, marking the beginning of a violent era for Anglo-Saxon England. As described in the Anglo-Saxon Chronicle, the Vikings plundered and murdered, establishing their...