Classification of Igneous Rocks: Intrusive vs. Extrusive

Now that we know how igneous rocks form, what are the types of igneous rocks? This depends on precisely where they form, and we can call them either intrusive or extrusive. These can also be called either plutonic or volcanic. What do these terms mean, and how do they relate to the composition of the rock? Let's find out!

Script by Jared Matteucci

Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!

[XParasiteOctoling]

What another beautiful day learning about R O C K S

[waelfadlallah]

Always excited whenever a video discussing rocks appears on my screen :)

[belengaz]

Every month of year you share a video about rocks

[MaryAnnNytowl]

I've got other geology channels I follow (GeoGirl & Geology Hub, for examples), but there's never too many geology videos for me. 😊 Thanks, Dave, for all you do!
❤❤

[Cellsolid]

I discovered Professor Dave a few days ago and I'm already a big fan! Great channel. Sei grande!

[TheRogueRockhound]

I'd like to see you cover related studies such as gemology and mineralogy.
I bet you could have fun w/ the metaphysical types too ^^

[karthikeyavarma]

Your videos really help me...thank you!

[ahdcat]

What type of rock is a flerf's brain made of? lol.

[HamiltonStandard]

would welcome a similar video about sedimetary rock...

[TheDevourerOfGods]

Igneous Rock is my favorite kind of music.

[nirmalmishra]

Sometimes you are Badass, sometimes Dick, you are non other but professor David.

[House_Stark]

Hey Dave, have you ever gotten any requests to do Devils Tower, WY? Seems to be a lot of speculation about it's origin. Everything from a laccolith to a full blown volcano and even some people(dummies) think it's a fossilized giant tree stump!

[stllrwxn]

hi sir, can u upload a loop of ur introduction background music only if it's okay? I like listening to ittt

[nanajelly]

would you consider adding spanish subs? 😿 it would be really helpful i wanna send your vids to my friends but i don’t think they would understand clearly ;( loved the video and explanation btw they were rlly helpful thank u sm 🩷

[masterxmasterx]

can you make a video about our consciousness and where its coming from and how every individual is unique to one another

[stllrwxn]

can someone tell me what is the name of the background music of his intro??

[angusyang]

Unrelated to this particular video, but related to other videos:

Professor Dave, I think I know why you call yourself a professor even though you're not technically a professor. It's not because you want to appear smart or claim false authority, it's because you want to give those poor sods brave enough to try and debunk you a last meal, a last comfort of sorts before the drowning tirade of stupidity and debunks come in.

In every "debunk" made of Professor Dave's content made by pseudoscientists, they always refer to him as "Professor" Dave, or bring up the fact that he isn't a real professor in their arguments, and they have a reason for doing it. It's because calling Dave out on his supposed "fake professorship, " is all that these enlightened human beings will ever get to actually discrediting Dave, and that's saying a lot. Were a professional scientist try to to debunk Dave, they would not need to resort to calling him out on this. They would say something along the lines of, "Dave Farina here is wrong, here is the evidence, this is why" They don't need to criticize Dave's choice of a title for his YouTube channel, because in theory their facts alone should be enough to disprove Dave, which is why every ID subscriber and other creationists frequently use this, because it's the only credibility they'll ever get. Dave is being merciful at letting these guys use this, because he knows that they are just nitpicking at every single hole they can find. It's the sweet swan song of these idiots before everything they say blows up in their face.

[FlatEarthKiller]

Professor Dave Farina, i’ve seen this bot that made 21 replies to comments as of writing this. Could you crack down on these bots? They are the bots that have the same profile picture as you, but with numbers sometimes enclosed in circles in their names, and they spam.