Crash Course
Plant Cells: Crash Course Biology
Hank describes why plants are so freaking amazing - discussing their evolution, and how their cells are both similar to & different from animal cells.
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Using ROMAN NUMERALS to name Ionic Compounds w/ a Transition Metal in Chemistry!
Transition metals are elements in the d orbital. The reason these are unique is that they do not have 1 set charge they become when they become an ion like elements in the s and p orbital. Elements in the d orbital, or our transition...
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Molecules, compounds and types of chemical bonds
What is the difference between a molecule and a compound? What are the main types of chemical bonds? In this video, we will be answering those questions and more.
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Writing Formulas for Covalent Compounds
A covalent compound is formed when 2 nonmetals bond together. When we have a covalent compound we have to use a specific set of naming rules. The first rules is that the first element keeps its name. The second rule is that the second...
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Naming Covalent Compounds the EASY way | How to pass Chemistry
This videos will cover how to name covalent compounds. It is important to remember that we have to use prefixes when we name covalent compounds. Covalent bonds, or compounds, form between 2 nonmetals, or 2 anions. In a covalent bond the...
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Chemistry - Molecular and Empirical Formulas Explained - What's the difference?
The molecular formula of a compounds gives you the actual formula while the empirical formula gives you a simplified version of the molecular formula. Both formulas are important in chemistry and they both gives us valuable information....
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Writing Ionic Formulas
Writing formulas for ionic compounds is all about canceling out the charges! An ionic compound is formed between a cation and an anion, or a positive and negative charge so the goal is to always get the charges to add up to zero! In this...
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Revolutionizing Air Pollution Monitoring and Breath Analysis: Leicester University's Breakthrough Device
Scientists at Leicester University have developed a sensitive device that can rapidly analyze chemical compounds in the air and human breath. This technology has the potential to revolutionize air pollution monitoring, as well as have...
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Controlling the Asian Tiger Mosquito: Innovative Solutions and Effective Traps
This video discusses the issue of the Asian Tiger Mosquito, an invasive species that can transmit various diseases. American Biophysics Corporation has developed a technology called Lurex, which is an attractant that can effectively lure...
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Dalton's Vision: The Birth of Atomic Theory
In 1803, John Dalton formulated his renowned theory of atoms. The principal tenets of his theory were as follows: ₷ Atoms were thought to be the smallest, hardest, densest, and indivisible particles of matter. Every element is made up of...
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The Importance of Tires in Formula One Racing
This video explores the rigorous testing and development of Formula One tires by Michelin. It highlights the importance of tire performance in F1 racing, considering factors such as high temperatures, different track conditions, and the...
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Inert
Unreactive, and resistant to change by any chemical means. 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...
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Denitrification
The process by which nitrate compounds in the soil are converted to free nitrogen in the atmosphere. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Toxic
Poisonous, capable of causing death or serious illness by chemical means. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Hydrophilic
Meaning water-loving, a hydrophilic substance is one that readily associates with water. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Chlorofluorocarbons
A class of compounds based on simple hydrocarbons like ethane, methane and propane, in which hydrogen atoms are replaced by chlorine and fluorine. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
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Ore
A type of rock containing minerals from which a useful substance can be extracted. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Factpack: Elements, Compounds, Mixtures
Definitions and examples of three distinct chemical classifications: elements, compounds and mixtures. Chemistry - Atoms And Bonding - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic,...
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The Elements: Silicon
Discover the unique properties of silicon, which is found in many things from sand to computers. Chemistry - Periodic Table - Learning Points. Silicon is a metalloid element. Silicon is found in sand, quartz, the Sun and stars. Silicon...
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The Elements: Phosphorus
Phosphorus is a versatile element, found in our DNA as well as fireworks and fertilisers. Chemistry - Periodic Table - Learning Points. Phosphorus helps convert food into energy. Phosphorus is found in our DNA. Compounds of phosphorus...
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Chemical energy
Chemical energy is stored in all compounds, and can be released in chemical reactions. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Transition element
Any of the metallic elements from the central block of the periodic table. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Primeval soup
Or primordial soup, refers to the medium in which the first life on Earth may have originated. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Lipids
Organic molecules that contain long carbon chains or rings and which tend to be insoluble in water, though soluble in organic solvents. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...