TED-Ed
TED-Ed: When is water safe to drink? - Mia Nacamulli
Water is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and often scarce commodity - there are nearly 800 million people who still don't have regular access to it. Why is that? And how can you...
SciShow
Why Is Fluoride Good for Teeth?
If our teeth are made mostly of calcium, why do we use fluoride to keep them healthy? Quick Questions explains why, and how we finally figured it out.
SciShow
What Happens After You Flush?
Humans have always peed and pooped, but where it goes after we’ve done our business has changed a lot. In fact: The water you just drank may well have been a part of someone’s urine just weeks ago! SciShow explains!
Bozeman Science
Water and Life
Paul Andersen begins with a brief description of NASA discoveries related to Mars, Mercury and water. He then explains why water is required for life. He finally uses a simulation to show you why water acts as a wonderful solvent and...
Bozeman Science
A Beginner's Guide to Balancing Equations
Mr. Andersen explains the basics of balancing chemical equations. A visual guide shows you how to change coefficients to balance the atoms in reactants and products.
Curated Video
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...
Curated Video
The EASY way to name Ionic Compounds!
In this video we are going to look how to name binary ionic compounds. These compounds deal with the ionic bonding of 2 different elements. Remember that an ionic compound is formed between a metal and a nonmetal or a cation and an...
Learning Mole
How Does it Work? - Drinking Water
This video is explaining how drinking water works for kids.
Curated Video
Balancing Chemical Reactions – 4 EASY Steps
In this video, we're going to show you how to balance chemical equations – it's going to be easy! We'll start with the basics, and then move on to more complex problems. By the end of this video, you'll be able to balance chemical...
Curated Video
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...
Curated Video
What is an atom made of
What is an atom? And what is it made of? In this video, I will be introducing you to the atom. We will also look at concepts like atomic mass, elements and isotopes.
Curated Video
Why does chemistry happen?! Element Stability and the Octet Rule!
Why does chemistry happen?? Why do ions form?? Why do elements bond together?? These are all important questions and the answer comes back to one very important principle in chemistry and that is element stability. Elements are stable...
Curated Video
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...
Curated Video
Factpack: How to Make a Human
Revealing the elements which make up the human body, and their relative abundance. Chemistry - Periodic Table - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention...
Curated Video
Substitution reaction
A reaction in which one functional group in a molecule is replaced by another functional group. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
The Elements: Chlorine
Find out why chlorine is used in swimming pools. Chemistry - Periodic Table - Learning Points. Chlorine is a yellow-green gas. At high concentrations, chlorine gas is poisonous. At lower concentrations, chlorine is used in cleaning...
Curated Video
Intermolecular Forces
Discover the role played by intermolecular forces in changing the state of matter between solid, liquid and gas. Chemistry - Atoms And Bonding - Learning Points. Intermolecular forces are the attractive forces between molecules....
Curated Video
Metal Extraction
We extract copper metal from copper chloride solution using electrolysis. The electric current causes copper to form at one electrode and chlorine gas to form at the other. The presence of chlorine is tested using blue litmus paper....
Curated Video
Ionic Bonding
How metals and non-metals combine to form compounds with unique and very different properties. Chemistry - Atoms And Bonding - Learning Points. An electrically charged atom is called an ion. Ionic bonds are very strong. Ions are formed...
Curated Video
Covalent Bonding
How non-metal elements combine by covalent bonds to form compounds. Chemistry - Atoms And Bonding - Learning Points. Covalent bonds occur between non-metal atoms. The number of bonds depends on how many electrons are in the outer shell....
Curated Video
The Halogens
Halogens are hazardous to human life, yet they can also be very useful. How do they react when they meet other elements? Chemistry - Periodic Table - Learning Points. The halogens are the elements in Group 7 of the periodic table. The...
Curated Video
Combustion
Or burning, a chemical reaction that requires an initial source of heat, a fuel, and an oxidising agent such as oxygen, and releases energy as heat, and often light. A Twig Science Glossary Film. Key scientific terms defined in just 60...
Curated Video
More chemical reactions – What happens next?
Sodium is heated and added to a flask containing chlorine ... what happens next? Material processes - Changing materials - More chemical reactions A Twig Tidbit Film - What happens next? A short section of film is played and the children...
Curated Video
Allenes and Optical Activity: A Surprising Twist!
Allenes are compounds with a unique structure characterized by two adjacent double bonds (C=C=C). Despite having no traditional chiral centers, certain substituted allenes can exhibit chirality and optical activity due to their rigid,...