Curated Video
Vegetable Oils as Fuel
Discover the processes involved in using vegetable oil as a biofuel. Could it become a viable alternative to fossil fuels? Chemistry - Chemical Industries - Learning Points. Vegetable oil is made of long chains of carbon atoms similar to...
Curated Video
Homo Ergaster
Homo ergaster had a huge brain and lived in complex social groups, but his evolution was stunted for a million years, until he discovered fire. Biology - Adaptation And Evolution - Learning Points. Homo ergaster evolved from homo habilis...
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Energy Change of Reactions
Some reactions take in energy and some release energy. Why? And what are some common examples of each type of reaction? Chemistry - Reactions - Learning Points. An energy change occurs when reactions take place. Exothermic reactions...
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Reactivity Series: Comparing the Reactivity of Group 1 and Group 2 Metals
We compare the reactivity of Group 1 and Group 2 metals. We add sodium and then potassium to water. We observe the reactions. Next we add magnesium and then calcium to hydrochloric acid and observe the reactions. The results let us put...
Curated Video
Endothermic Reaction
We demonstrate an endothermic reaction by mixing hydrated barium hydroxide with ammonium thiocyanate. When these two solids react they take heat from the surrounding air. Chemistry - Reactions - Learning Points. Breaking bonds takes in...
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Introduction to Chemical Bonding
The basic ways elements combine to create compounds, fundamental to life as we know it. Chemistry - Atoms And Bonding - Learning Points. There are 92 naturally occurring elements. They fall into two categories: metals and non-metals....
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Intermolecular force
A weak attractive force between molecules, much weaker than the chemical bonds that hold atoms together within molecules. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Learn How To Draw Lewis Structures Easily: 4 Simple Steps For Perfect Chemistry Diagrams Every Time
Never draw a Lewis Structure wrong again! In this video, we’ll show you 4 simple steps to master the art of drawing Lewis Structures—an essential skill in chemistry that helps explain molecular behavior and the chemical and physical...
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Master Bond Dipoles in Minutes - Chemistry Made Simple
In this video, you'll master bond dipoles in minutes – Chemistry Made Simple! 🌟 Dive into the fascinating world of bond dipoles and learn how to identify these crucial elements in various molecules. Understanding bond dipoles is...
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3 Intermolecular Forces You Must Know to PASS Chemistry
Understanding Intermolecular Forces (IMFs) is essential to success in chemistry and being able to discuss various properties we see in different molecules. In this video we cover the big three IMFs - hydrogen bonding, dipole dipole...
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Newman Projections of Cycloalkanes: See Molecules in 3D!
Newman projections are a powerful tool for visualizing the three-dimensional conformations of cycloalkanes. By looking down the axis of a particular bond, this projection allows chemists to depict the spatial arrangement of atoms and...
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Chirality in Organic Compounds: Asymmetry in Action
Chirality refers to molecules that have a non-superimposable mirror image due to an asymmetric carbon atom. These chiral compounds are vital in many biological systems, as their mirror images often have different effects
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Rules for Writing Resonating Structures: Get Them Right!
When writing resonance structures, it's essential to follow certain rules: only electrons move, not atoms; all structures must have valid bonding; and charges should be minimized. These guidelines ensure resonance structures accurately...
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Resonance in Chemistry: The Dance of Electrons
Resonance is a concept used to describe delocalization of electrons in a molecule across multiple atoms. In resonance structures, electrons are shared between atoms in ways that stabilize the molecule. This "electron dance" can lower the...
Curated Video
Inductive Effect: The Hidden Forces in Molecules
The inductive effect refers to the electron-donating or withdrawing influence that substituents exert on a molecule through sigma bonds. Electronegative atoms or groups pull electron density away from the rest of the molecule, while...
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Why Do Clothes Feel Stiff When Air Dried But Soft Coming From the Dryer?
The difference between air-drying and tumble-drying is that air-drying keeps the cellulose fibers from reforming their hydrogen bonds more effectively, which makes the towel feel a bit fluffy. Tumble drying, on the other hand, causes the...
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Why Does Water Evaporate at Room Temperature?
Water evaporates at room temperature because the molecules at the top of the liquid have less intermolecular attraction than those within the bulk. When the top layer is exposed to sunlight, some molecules gain enough kinetic energy to...
Wonderscape
Understanding Chemical Reactions: Reactants, Products, and Chemical Bonds
Learn about the components of a chemical reaction, including reactants and products, and how chemical bonds are affected during the process. Explore examples like cookies and rusty bike fenders to understand these concepts better. All...
Wonderscape
Understanding Energy Changes in Chemical Reactions
Explore the concept of energy changes in chemical reactions, including exothermic and endothermic reactions. Learn how chemical reactions can either release or absorb energy in the form of heat or light, with examples ranging from baking...
Wonderscape
Just a Phase: Exploring Matter's Marvelous States
Journey through the fascinating states of matter—solid, liquid, and gas—and discover how atoms and molecules behave in each. This video unravels the atomic-level interactions that define each state, from the tight bonds of solids to the...
Wonderscape
Understanding the Stock Market: An Intro to Shares and Investments
Dive into the basics of how the stock market operates, including buying shares, IPOs, and understanding return on investments (ROI). Discover the dynamics of stock prices affected by supply and demand, and get practical insights into...
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The United States Government
Dr. Forrester describes some of the goods and services that our government provides. She explains the ways that the government receives money, and how the government must decide how best to spend the money.
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Navigating Effective and Ineffective Collisions in Collision Theory
Collision Theory, Decomposition of Hydrogen Iodide, Activation Energy, Activated complex, Volleyball game analogy,Effective& ineffective collisions. Collision Theory & Arrhenius Factor part 1
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Revealing the Dynamics : The Effect of Pressure and Concentration on Reaction Rates
Factors Affecting Rate of Reaction - Concentration & Pressure, Rate of Ammonia, electronic explanation, influence of bonds on rate, formation of ZnCl2, role of Effective collisions & Partial Pressures. 3 Factors influencing Rate of...