Sciences Grades 10-12

Resources gathered by Blackgold School District that you can use in your Chemistry 20 classes. If you click the links, there is a sign-in prompt -- but you can bypass the sign-in by clicking the image instead and will be able to access all the Google slides associated with that image

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!

This two-minute video explains the chemistry of how snowflakes form, "from their origins in bits of dust in clouds that become droplets of water falling to Earth".

Today you will learn that chemical bonds form in order to minimize the energy difference between two atoms or ions; that those chemical bonds may be covalent if atoms share electrons, and that covalent bonds can share those electrons evenly or unevenly; that bonds can also be ionic if the electrons are transferred instead of shared: and how to calculate the energy transferred in an ionic bond using Coulomb's Law. Wow!!

In this episode of Crash Course Chemistry, learn about the Lewis Dot Structure and why we need models (something that represents something else) as learning tools.

Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native.

In this episode, Hank talks about Network solids and Carbon and how you can actually create a Diamond from plain old Carbon (at least in theory). BUT, within you will learn about Solid Networks, Diamond and Graphite Network Structures, as well as Sheet and 3D Networks.

This video discusses how molecules need to have both charge asymmetry and geometric asymmetry to be polar, and that charge asymmetry is caused by a difference in electronegativities.

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.

Today, you'll learn about amorphous and crystalline solids, types of crystalline solids, types of crystalline atomic solids, properties of each type of solid, and that the properties depend on the bond types.

Chemical bonds form in order to minimize the energy difference between two atoms or ions. Learn about ionic and covalent bonds and how to calculate the energy transferred in an ionic bond using Coulomb's Law.

Here is a great interactive periodic table - Each element has a link to show what the element looks like, with the history of discovery, and other useful information about the element.

This periodic table has some different symbols and pictures. The pictures show things that relate to each of the elements.

This is an entire periodic table, with videos about each element. These videos are chemistry adventures in the laboratory, as well as journeys into the world, to learn more about the unique qualities of each element.

This animation allows the user to change the number of protons and neutrons in the target nucleus and see how the alpha particles are scattered. It compares the Rutherford atom model with the Thomson model.

Watch different types of molecules form a solid, liquid, or gas. Add or remove heat and watch the changes. Change the temperature or volume of a container and see a pressure-temperature diagram respond.

Atoms bond constantly; it's how they form molecules. This video explains chemical bonds, from simple oxygen to complex human chromosome 13.

Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You could stare at the bright flames forever as they twist and flicker in endless incarnations… But what exactly are you looking at?

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.

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.

This video describes how we can understand the shape of a molecule. A molecule is nearly all empty space, apart from the extremely dense nuclei of its atoms and the clouds of electrons that bond them together. When that molecule forms, it arranges itself to maximize attraction of opposite charges and minimize repulsion of unlike.

We have learned that gases have real-life constraints on how they move here in the non-ideal world. How a gas moves is more complex than it seems at first. In this episode, Hank describes what it means when we talk about the velocity of a gas - to understand gas velocity, we have to know what factors affect it, and how.

This video works through several calculations according to the ideal gas law to help students get familiar with it.

This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapour pressure - and demonstrating the method for collecting gas over water.

Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms and molecules take up space and for pressure because they're attracted to each other

This video explains how the work of scientists combined to produce the Ideal Gas Law and how the ideal gas equation allows you to find out pressure, volume, temperature or number of moles.

Watch different types of molecules form a solid, liquid, or gas. Add or remove heat and watch the changes. Change the temperature or volume of a container and see a pressure-temperature diagram respond.

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, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions and talks about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Plus, a really cool experiment using indicators to showcase just how awesome buffers are.

In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just... WEIRD!

In this episode, learn about reversible reactions, the water dissociation constant and what pH and pOH actually mean. The video also describes acids, bases, and neutral substances as well as logarithms, and how to calculate pH and pOH.

This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes. All that plus Henry's Law and why Coke = Burps.

Dihydrogen monoxide is the key to nearly everything. Without it, none of the chemical reactions that keep us alive wouldn't happen. Learn to classify solutions electrolytes, calculate a solution's molarity, and dilute a solution using the dilution equation.

"Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects...

This video uses the currency of subatomic particles to explain this unseen exchange. Acids actively give away their protons while bases actively collect them, some more aggressively than others.

In this episode of Crash Course Chemistry, Hank discusses what molecules actually look like and why, some quantum-mechanical three-dimensional wave functions are explored, he touches on hybridization, and delves into sigma and pi bonds.

In this Crash Course Chemistry video, students learn about precipitation, precipitates, anions, cations, and how to describe and discuss ionic reactions.

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.

In this episode, we talk about Silicon Valley's namesake and how network solids are at the heart of it all. Hank also discusses Solid-State Semiconductors, N-Type and P-Type Semiconductors, Diodes, Transistors, Computer Chips, and Binary Code. All from the same thing that makes up sand!

Chemists need stoichiometry to make the scale of chemistry more understandable. This video explains why and how we can use stoichiometry.

This video explains the law of conservation of mass. Everything in our universe has mass, from the smallest atom to the largest star. How has the amount of mass remained constant throughout existence even during the birth and death of stars and planets?

When we first learn about atoms, we learn that the simplest has one electron buzzing around one proton, aka hydrogen. But it turns out there's an atom that's even simpler than this. It's called muonium, and it's an atom that's partially made of antimatter!

Say hello to the 4 newest elements! These 4 elements are the heaviest elements on the periodic table—and they finally got names in June 2017. Join Hank Green for this new episode of SciShow and learn all about them.