Science360
Fishy business
In episode 47, Jordan and Charlie explore how scientists at the University of Texas at Austin have solved the longstanding mystery about how some fish “disappear” from their predators. A fish’s ability to go invisible in polarized light...
Weatherthings
Weather Things: The Sun's Role
The 3 simple ingredients of sun, air and water lead to every type of weather on Earth. The atmosphere is constantly trying to balance heat from the sun with water vapor and air to create a dynamic planet. The unique properties of the...
Catalyst University
Chemistry | How to Name Binary Molecules
In this video, we discuss the rules [with examples] for naming binary molecules in general chemistry.
Visual Learning Systems
Natural Cycles: Nitrogen Cycle
This program addresses many of the cycles conducted by animals including those of migration, hibernation, and patterns relating to day and night. The cycles that affect all living things are discussed including the air we breathe and the...
Curated Video
Understanding MPK Fertilizers: Sources of Nitrogen, Phosphorus, and Potassium
This video provides an overview of MPK fertilizers, explaining what they are, why they are needed, and where they come from. The video discusses the three main nutrients that are required for healthy plant growth - nitrogen, phosphorus,...
FuseSchool
Extraction Of Oxygen & Nitrogen From Liquid Air
Learn the basics about Extraction of oxygen and nitrogen from liquid air. How do you extract oxygen? What are nitogren's properties? Find out more in this video!
msvgo
Chemical Reactions Diazonium Salts
It explains chemical reactions of diazonium salts under two conditions.
NASA
NASA | Playing Tag With an Asteroid
What's the best way get a sample of an asteroid? Play tag with it! That's the plan for OSIRIS-REx, a NASA spacecraft that will approach the asteroid Bennu in 2018. The collection will be done with an instrument on board called the...
Professor Dave Explains
Practice Problem: VSEPR Theory and Molecular Geometry
What's with all these shapes? Let's practice assigning hybridization, electron-domain geometry, and molecular geometry. Octahedral! Tetrahedral! Linear! Pyramids and see-saws and what not! Chemistry is fun, isn't it?
Professor Dave Explains
Types of Bonding in Transition Metal Systems and Simple Ligands
Now that we've made it through the periodic table, it's time to look at transition metals and the coordination compounds they can form. What types of ligands can they interact with, and how? What shapes do they make? There is so much to...
Science360
Tires and Pressure - Science of Speed
NASCAR tires don't have "air pressure" because they're filled with nitrogen. The culprit responsible for increasing tire pressure during a race is friction. Using dry nitrogen gas helps the team predict how hot the tire will get and how...
Professor Dave Explains
IIT/JEE Chemistry Practice #15: Electronegativity/Ionic Radii
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
NASA
The Faint Young Star Paradox: Solar Storms May Have Been Key to Life on Earth
Our sun's adolescence was stormy—and new evidence shows that these tempests may have been just the key to seeding life as we know it on Earth. Credit: NASA/Goddard/Genna Duberstein on / /
Professor Dave Explains
Practice Problem: Site of Protonation on a Weak Base
For this one we will need to understand the basics about Bronsted-Lowry acid-base reactions, and we also should be able to gauge the stability of various potential conjugate bases.
Professor Dave Explains
IIT/JEE Chemistry Practice #16: Chemical Bonding
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Practice Problem: Balancing Equations
Who couldn't use a little practice balancing equations? If you've seen my tutorial outlining how to do this, then you're ready for four rapid fire examples to make sure you're ready to do this on your own. Give them a shot!
Professor Dave Explains
IIT/JEE Chemistry Practice #20: Hybridization
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
IIT/JEE Chemistry Practice #14: Ionization Energy
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Mazz Media
Heat of Vaporization
This program begins by defining heat of vaporization is the amount of heat that must be added or given off to vaporize one gram or kilogram of a substance and is expressed as J/g or J/kg. Through real, live footage and animation,...
Schooling Online
Chemistry Properties and Structure of Matter: Properties of Matter - Separation Techniques Part 2
But why is the rum gone? Don’t worry, pirates. Long Jane Silver is refilling the rum barrels. Elsewhere, Blackbeard and Cookie the Chef have a showdown. Who is the best separator of seawater across the seven seas? This lesson will...
Professor Dave Explains
Practice Problem: Limiting Reagent and Percent Yield
Once we get the hang of stoichiometric calculations, we get a curve ball. Limiting reagents? Not all of the reactants will react? We might not get as much product as we expect? Let's practice identifying the limiting reagent, calculating...
Professor Dave Explains
Practice Problem: Calculating Equilibrium Concentrations
We know how to write equilibrium constant expressions for any equilibrium, and we know that they relate the equilibrium constant to the equilibrium concentrations for all of the substances in the system. Let's see if we can calculate a...
Professor Dave Explains
IIT/JEE Chemistry Practice #8: Molecular Formulas
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!