Doing Solids: Crash Course Chemistry #33

In which Hank blows our minds with the different kinds of solids out there and talks about why they're all different and have different properties. 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.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

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Table of Contents

Amorphous and Crystalline Solids 1:27
Types of Crystalline Solids 4:07
Types of Crystalline Atomic Solids 5:17
Properties of Each Type of Solid 4:16
Properties Depend on Bond Types 6:17
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[crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! 

[mustang]

People used to think glass was partially liquid at room temperature because old, hand-made glass panes often had flaws and imperfections.  Claiming glass was forever fluid was an easy way to explain this while making it sound cool.

[legosandpajamas]

I really appreciate the topic links at the end of the episode (the ones that link back to different times within the episode). They're really helpful, especially when you're bad at chemistry!

[Chirpxxx]

Did anyone else jump at the glass shattering?? Lol XD

[lorddethklok]

To think 6 years ago I watched this to learn it for highschool, now im back at college learning it all over again, all thanks to yall

[hari-krishnakoipallil]

I love how a few episodes before this, Hank was complaining of being in John's shadow, and now he is wearing a Pizza John t-shirt.
Brotherhood 2.0!!

[cellogirl]

Congratulations on one million subscribers! I'm so glad to have such amazing educational resources on the Internet.

[thehoodedteddy]

the broken glass genuinely made me fall out of my chair (ow)

[WarLarkGamer]

I was in another tab and had a FREAKING HEART ATTACK when the glass smashed.

[dayuuum]

3:47 thumbs up if that portion scared the s*it out of you :/

[crystalyeh]

6:05, the most adorable illustration of noble gas solids ever.

[guie]

Hello! I am an IB student and nerdfighter who thinks that the Green brothers are absolutely awesome; anyway, I was wondering if you could make a video on crystallization (of water and/or any other 'chemicals'). I think it is a very interesting topic so much that I am doing my Extended Essay about it (I want to study the effect of sound frequencies on crystallization of water). Is there already a video about it? If no could you tell us more about it? 
Thanks so much for all your awesome work!!

[andrewmurgatroyd]

These videos are great! I like to show them in my class when I can. The fast paced style is great for me, but it can be a little overwhelming for my students, many of whom are still learning English. It would be awesome if there were a crash course "light" video where the same concepts were presented, maybe with less detail and spoken slower.
Keep it up!

[flamedragon]

Yea, I I jumped at the glass shattering. OMG! He had to use the broken glass refrence.

[shanedelzer]

Please make a video for quantum physics and its application to photons and the application of how photons excite electrons in there orbital shells

[scott]

One of the part of high school chem I loved most was melting glass tubes to make stuff.

[IbanezVCE]

Will we ever get a Crash Course Physics? :)

[souhaylsoulami]

One of the best videos Hawk has ever done

[fartzinwind]

For all we know Hank isn't wearing any pants. So if he wasn't interacting with his clothing, the most we would notice is a lack of shirt, and that would be more awkward than inappropriate.

[miguelarriagaecunha]

I think it's important to point out that although pure metal crystals would be anisotropic, in everyday applications, because the metals solidify in tiny crystals called grains which have random orientation, usually their behavior will be as if it were isotropic. In fact it's a very common assumption in engineering.