Curated Video
Optical Activity: When Light Meets Molecules
Optical activity refers to the ability of chiral compounds to rotate the plane of polarized light. Compounds that rotate light clockwise are termed dextrorotatory (+), while those that rotate it counterclockwise are levorotatory (−). The...
Catalyst University
Combining Cations & Anions to Name Ionic Compounds
Here, I show you how to write the formula for an ionic compound given the cation and anion. [5 examples]
SciShow
6 Ways Species Rely on Humans for Survival
Sometimes, a species has declined so dramatically that they require serious human intervention to ensure they don’t disappear forever. Here are six ways we’re using conservation and science to keep those species alive....
Chapters
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Catalyst University
Chemistry | How to Name Binary Molecules
In this video, we discuss the rules [with examples] for naming binary molecules in general chemistry.
Curated Video
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.
Curated Video
B1 English Listening Practice - American Culture Pt 2
This video serves as English listening comprehension practice for intermediate-level students. In this second part of the two-part video series on American culture, a native English speaker talks in a natural way about several different...
Visual Learning Systems
The Chemistry of Compounds
In this video, students learn about the concept of compounds and how they are formed by the chemical combination of two or more elements. The example of water is used to illustrate how molecules, which are the smallest particles of a...
Curated Video
Conditions for Optical Activity: When Molecules Twist Light
For a molecule to exhibit optical activity, it must be chiral, meaning it has no internal plane of symmetry. Additionally, the solution or compound should not contain equal amounts of enantiomers (racemic mixture), as these cancel out...
Curated Video
Hydrated compound
A solid compound that contains water molecules in a defined ratio. 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...
Schooling Online
Chemistry Properties and Structure of Matter: Properties of Matter - Naming Covalent Compounds
This lesson will discuss the rules for writing the names and chemical formulae of covalent molecules and covalent networks. Definitions included: compound, ionic compound, covalent compound, covalent bond, electronegativity, molecular...
Curated Video
Organic molecule
Generally refers to a compound that contains carbon bonded to hydrogen and is usually associated with the carbon molecules made by living organisms. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
Curated Video
Introduction to Representing Elements and Compounds in Chemistry
This video is a lesson on how to represent elements and compounds in terms of the atoms they can take. The video covers the definition of an element, the periodic table, chemical symbols, and formulas. It also explains how compounds are...
Professor Dave Explains
Types of Matter: Elements, Compounds, and Mixtures
What's the difference between a physical change and a chemical change? What are elements, compounds, pure substances, and mixtures? So many definitions to learn! Don't worry, Professor Dave will take you through the details.
Curated Video
Describing Data Sets
In this video, students will learn how to describe a data set by using the characteristics of the quantity measured. The video covers different types of data representations such as dot plots, histograms, and tables, and explains how to...
Guinness World Records
E-Jump Fuji: Most Skips Over a Single Rope in One Minute by a Team
The most skips over a single rope in one minute by a team is 230 and was achieved by E-Jump Fuji (Japan) in Fuji, Shizuoka, Japan, on 8 September 2017.
Next Animation Studio
NASA Curiosity rover finds ancient organic molecules on Mars
After decades of searching for organic compounds on the Red Planet, scientists have finally been successful.
Professor Dave Explains
Coordination Compounds: Geometry and Nomenclature
We have been learning a lot about a wide variety of compounds, but we haven't really looked much at the transition metals. These also form compounds called coordination compounds, and the types of bonds involved in these compounds is...
TMW Media
Naming Molecular Compounds
This program covers the very important topic of naming molecular compounds. We begin by discussing how molecular compounds form and how they arise in nature. We discuss in detail the naming method for molecular compounds including all of...
TMW Media
Hydrate Compounds
This program covers the very important topic of hydrate compounds. We begin by discussing what a hydrate compound is and why they exist in nature. We discuss how to name hydrate compounds using numerous examples. The entire lesson is...
Curated Video
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,...
SciShow Kids
Playtime with Parachutes
From skydiving to recess, parachutes are used for fun and safety. So how do parachutes work to slow down people in the sky, or make a fun bubble to play in? Join Squeaks and Jessi as they show you how forces allow parachutes to do their...
SciShow
The Star That Trolled Astronomers
In 1967, a star was discovered that seemed to be different than most stars, . . . it looked like it was blinking.
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