Chemistry Lesson: Atoms, Elements, Compounds, and Mixtures

ESJohnson14's webcam video September 14, 2010, 05:06 PM

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• chemistry
• atoms
• elements
• compounds
• mixtures
• matter
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[SiiiMei]

Thank you SO SO much for this video! It really helped me. But one question, do you remember why carbon dioxide and hydrogen made a homogenius mixture? @ 6.20 :) hopefully you'll remember, otherwise it's okay! thanks again !

[ESJohnson14]

@SiiiMei They are both gasses so when they are mixed you can't see the difference between the two. Remember that if you can't see a difference between the two (without a microscope) then it is most likely a homogenous mixture. 

[Stoptherobots]

Hey! I am a science teacher, and I like your chart for the hierarchy of matter way better than mine, so I'm telling my students to throw theirs out today and make a new one. Thanks!

[ESJohnson14]

@Stoptherobots This makes me so surprised. I just drew something up really quick. I hope that your students find it helpful. I'm an elementary education major and love to hear that I am helping another teacher in their classroom. :D

[elinkton]

PLEASE, PLEASE, PLEASE CAN YOU DISCUSS FUELS (HYDROCARBONS, COMBUSTION, FORMATION OF CRUDE OIL, ETC). I LOVE YOUR CHEMISTRY VIDEO! THEY HELP ME SO SO SO SO SO SO MUCH.

[ESJohnson14]

@elinkton I'm sorry. I don't post anymore videos about science. It was just something brief that I did to help me study. I've forgotten most my chemistry. I'm useless now when it comes to science.

[roblitosss]

I love the way you teach can you give more lessons on chemistry please

[roxygirlnc]

thanks you sososo much. hopefully will pas bio.

[RevIreland]

Thank you so much! This really helped me! God bless!

[tiearruda]

thank u!!! the chart and everything else was great :)

[SiiiMei]

@ESJohnson14 thank you :):)

[athleticalmonkey]

Thank you! You taught me so much!