Types of Matter: Elements, Compounds, and Mixtures

What's the difference between a physical change and a chemical change? What are elements, compounds, pure substances, and mixtures? So many definitions to learn! Don't worry, Professor Dave will take you through the details.

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

[ProfessorDaveExplains]

To learn about a fourth phase of matter, plasma, which is what's inside stars, check out my astronomy tutorials!

[silverbackgojira]

I think I want to go to college one day, been terrified of school since high school but this kind of stuff has become so interesting to me that I want to learn as much as I can. Thanks Dave, for making me feel like I have a place to start working towards that

[horie]

my teacher discussed for 2 hours not that good discussion this one is discussed in 4 minutes = remarkable results

[julialuciani]

This is who I'm talking about tomorrow when I take my chemistry test and say "Jesus take the wheel."

[amvrinn]

I hope there's an alternate universe where every teacher explains like you. Thank you btw

[identiikit]

what's even the point of the public education system when you have Professor Dave Explains

[syedishtiq]

my teacher couldn't make me understand in 5 lessons, you did it in 4 minutes.

[poofypeach]

Professor Dave you are amazing. This is the fifth + video I’ve watched on pure substance and mixtures and is the one that has explained the process most clearly and simply. Many blessings and thanks.

[sk-mwfh]

Hi i've opted for bsc in psychology for my undergrad and we have biochemistry there. My classes starts from August so i wanted to prepare a bit as it would be new area for me. So from your video on introduction to biochemistry i landed here as I don't know much about chemistry like truly my knowledge is very less. Will update after completing all the general chemistry videos about how much i progressed! Wish me luck!!

[judhiel]

thank you for this video! I learned a lot at 1:05AM.

[somanytvshowshavecausedmee]

Ahhh i cant believe that i just found out about this channel now! This has already been amazing and i love it instantly! :)

[Michael-fyor]

Summarized the whole unit in a 4 minute video. Real MVP

[acsavado]

thank you for always saving me before class/tests. I had to watch this 3 times to get it but I'm confident I understand it now

[tacwedie]

You have teached me more in 4 minutes and 15 seconds than my teachers can in 1 hour. This was very interesting.

[thegoodlydragon]

Professor Dave: "Water is not an element."
Aristotle: TRIGGERED!

[rajivdwivedi]

Very easy to understand. Thank you, Professor Dave!

[dotnought]

Channel: Professor Dave
Me: Professor Jesus
Science teacher: Annoying
Hotel: Trivago

[DerGrosTitan]

Been watching this for class at nearly 1 AM but it's very easy to understand if you really focus because this guy explains it very easily. Thanks man!

[whoskhaluda]

Mans explained the states of matter, physical and chemical change, and elements and compounds and mixtures in JUST 4 MINS, when my teacher would take about week just finish at least 2 of those lessons
great job man, didn't take too much time AT ALL and i understood, thanks so much

[abijahdixon]

I love this! At first I was like, well that's not very long to learn stuff, but after I watched it I realized it was perfect! I have a mild learning disorder, I think quickly but often don't retain things well or comprehend them enough to learn right away the first time. This is just enough but not too short to get the point and not long and drawn out so that people lose their attention like when I'm rambling on haha! I never understood chemistry in school but always found it interesting. Now that I'm older maybe I can with your videos!