Sciences Grades 10-12

You'll learn what to wear in the lab, how to dispose of chemicals safely, how to avoid the most common accidents, how to pour solutions properly, what the HazMat diamond means, what an MSDS is, and how to use a fume hood.

A web guide created by the ATA Library that has a tonne of great information all about the periodic table!

Today, Hank introduces us to the world of Organic Chemistry and, more specifically, the power of hydrocarbon. He talks about the classifications of organic compounds, the structures & properties of alkanes, isomers, and naming an alkane all by observing its structure.

Today Hank talks about the deliciousness of alkenes & alkynes, their structures, and how to remember which is which by simply knowing the alphabet. Also, he breaks down hydrogenation, halogenation, polymerization, and triglycerides all while helping us figure out the meaning of different names for fats.

What's that smell? Smell's like Organic Chemistry! This week Hank talks about Aromatics and Cyclic Compounds, naming their substituents, resonance, and common reactions & uses.

Functional groups? Functional groups within functional groups? Hank takes today's Crash Course video to discuss some confusing ideas about Hydrocarbon Derivatives but then makes it all make more sense.

Ever feel like there's an international team of bad guys changing all of the easily remembered chemical names and turning them into test-failing, number-infused, pain-in-the-neck names? Well... you're not wrong. IUPAC exists, but try to keep in mind that they're doing it for the greater good.

Polymers are so integrated into our daily lives that we sometimes forget how amazing they are. This video explores how they have developed and the different types of polymers that are common in the world today.

In this final episode of Crash Course Chemistry, Hank takes us on a tour of The Global Carbon Cycle and how it all works. From Carbon Fixation to Redox Reactions, it's all contained within!

Molecules have 3-D shapes that help us understand what they can do. In this episode of Crash Course Organic Chemistry, we’ll learn how orbital hybridization and valence bond theory can help us explain 3D molecular structures and about constitutional and geometric isomers.

Alkanes are kind of the wallflowers of organic chemistry, but they still have important functions in the world around us. In this episode of Crash Course Organic Chemistry we’re building our knowledge of organic molecules by learning all about these so called couch potatoes from how they are separated from crude oil to how to use Newman projections to predict torsional strain and steric hinderance.

Today, we’ll specifically be looking at alkene addition reactions, and with each new reaction ask ourselves three questions to help us puzzle through the mechanism and understand what’s going on.

Oxidation-reduction reactions are going on around us, and inside us, all the time, and we can make redox reactions in organic chemistry easier to understand by tracking carbon-oxygen bonds. Today, we’ll focus on alkene redox reactions and revisit our 3-part secret handshake to help us better understand patterns and predict the products of these reactions.

Today, we're learning all about cyclohexanes, including how rings pucker to relieve strain, the boat and chair conformations, and how ring flips can switch substituents from axial to equatorial.

In this episode, we’ll learn all about how to write reaction mechanisms. Having this super useful skill means we don’t have to worry about memorizing every reaction that has ever existed.

On this episode of Crash Course Organic Chemistry, we’re learning about mass spectrometry and infrared spectroscopy through the lens of a forensic investigation. Put on your lab coats, and let’s solve this mystery!

In this episode of Crash Course Organic Chemistry, we're building on the last episode's discussion of nomenclature by learning about IUPAC's naming rules for even more functional groups.

Enantiomers have almost all the same chemical and physical properties, so it can be tough to separate them. But it’s still super important that we know how to tell them apart! Today, we’ll recap all the types of isomers we’ve learned about so far, and learn about polarimetry as a way to separate enantiomers

Today, we’ll learn all about radicals (unpaired electrons) including the three key steps in a radical reaction and Hammond’s Postulate, an important tool to help us understand these reactions. We’ll also see ways radicals can react with alkanes, alkenes, and alkynes.

n this episode of Crash Course Organic Chemistry we’re learning about stereochemistry and how to identify molecules as chiral or achiral. And as always, we’ll be doing a lot of practice!

This episode of Crash Course Organic Chemistry is all about nomenclature. We'll dive into IUPAC systematic naming of organic molecules, and get to practice with the help of three trusty steps!

Today, we’ll review some important concepts from general chemistry, learn how to draw energy diagrams, go over the difference between an intermediate and a transition state, and get an introduction to catalysts.

Today, we’re talking about the amazing diversity among organic molecules. We’ll learn about the origins of organic chemistry, how to write Lewis structures, condensed structures, and skeletal formulas, and what gross organic compound the Romans used to dye their fabrics pretty colors.

This video explores acids and bases and their proton-exchanging ways. Learn about the reactions happening in those solutions - atoms reorganizing themselves to create whole new substances.

In this episode of Crash Course Chemistry, Hank goes over the ideas of keeping your life balance... well, your chemical life. Equilibrium is all about balance and today Hank discusses Chemical Equilibrium, Concentration, Temperature, and Pressure. Also, he'll chat about Le Chatalier's Principle and Fritz Haber.

In which Hank shows you that, while it may seem like the Universe is messing with us, equilibrium isn't a cosmic trick. Here, he shows you how to calculate equilibrium constant & conditions of reactions and use RICE tables all with some very easy, not-so-scary math.

Have you ever been to a Demolition Derby? Then you have an idea of how molecular collisions happen. In this episode, Hank talks about collisions between molecules and atoms, activation energy, writing rate laws, equilibrium expressions, reactions mechanics, and rate-determining steps. And funnel cakes are AWESOME!

When molecules collide, chemical reactions can occur, causing major structural changes. This video imagines chemical systems as busy city streets and the colliding molecules within them as your averaged citizen.

Chemistry raised to the power of AWESOME! Today, Hank discusses electrochemical reactions, half-reactions, how batteries work, galvanic cells, voltage, standard reduction potential, cell potential, electrolysis, electroplating, and the things that go into making it possible for you to watch this episode of Crash Course Chemistry!

Hank admits to being wrong about how everything is chemicals. But he now wants you to listen as he blows your mind with a new sweeping statement: everything (yes, really everything this time) is energy. What?!

If you are paying attention to this episode you'll learn what the state function is, and how it varies from a path-dependent function; why enthalpy change is different from heat; that bonds are energy and to form and break them they release and absorb heat to and from their environment.

In chemistry, entropy is the measure of molecular randomness or disorder. For the next thirteen minutes, Hank hopes you will embrace the chaos as he teaches you about entropy.

In this video, learn how reduction (gaining electrons) and oxidation (the loss of electrons) combine to form redox chemistry, which contains the majority of chemical reactions.

The video explains the science of batteries. How were they developed, why do they lose charge, and how do batteries even store charge in the first place?

As we drive around in our vehicles, we don't often think about the chemistry lesson under the hood. This video explains the chemistry involved in keeping our car engines from getting too hot or too cold.

Did you know that snowflakes are all six-sided and that none of them are exactly the same? Learn about the science of covalent bonds and the making of a snowflake.

In this episode, students learn what the state function is, and how it varies from a path-dependent function. Students also learn about Hess's Law and how to use the concept of the standard enthalpy of formation to calculate exactly how much heat is produced by any chemical reaction.

This Crash Course video explains enthalpy, including how we calculate it, and how we determine it experimentally.