Reminds me of those 90's science videos you see as an elementary student.

What a clear explanation!I enjoyed it .

Excellent video..It helped me a lot.And awesome explanations

Excellent explanation!

Fantastic stuff. I really liked the end where you suggested that leaves of different colo(u)rs are worth looking at and also about the possible relationship between levels of chlorophyll and growth rates. To be honest, with a little bit of variety, this simple qualitative experiment could be easily modified into a detailed experiment covering the 90 minutes that I have to do chromatography with some visiting junior high school students (here in Japan). Thanks for the great video and ideas.

Awesome video thanks for explain us very clearly

Great video! Informative and made me smile. If you don’t mi no me asking, what is your hair and skin care routine? You look radiant

Mind blowing explanation bro .it helpful for my practical exam tq bro

Ditto oh I thought I cared lol, you really have done an excellent job. Keep it up and kiss Bill Nye good bye. You do this EXACTLY the way science is supposed to be done. Just outstanding. Effortless attention to detail. I love it.

This is great, I did exactly the same stuff in biology back in the early 2000s!

IB students that missed an ISC class here are the answers - What are the pigments and why do plants and algae need them? The pigment of the plant or algae shows which colors they will absorb from electromagnetic radiation and the colors they will reflect - Explain the materials needed to conduct the experiment - Piece of coffee filter - 15ml of 95% ethyl-alcohol - A pinch of sand - 2 toothpicks - A mortar and pestle - 50 ml graduated cylinder - 250ml beaker - Test tube and rack - Plastic wrap - Ruler - Pencil - Scissors - 5-10 fresh spinach leaves - Briefly explain the method of the investigation - Cut the leaves into piece with scissors - Grind the leaves with the pestle for a minute - Add a pinch of sand while grinding - Add 10 ml of the ethyl-alcohol - Mix for another minute - Place the mixture in the 250ml beaker - Cover the top with plastic wrap - Leave for 10 minutes - Cut a strip of the coffee filter and make sure it’s longer than the test tubes - Roll an end of the paper around the tooth pick - Place the toothpick with the paper wrapped around in the test tube, with the toothpick resting on top - The paper should not touch the bottom - Take the paper out and measure 1-2 cm of the bottom end of the paper and draw a line across - Take the other toothpick and dip it into the mixture and place the sample onto the line previously drawn - Pour 5 ml of ethyl-alcohol into the test tube - Place the filter paper with toothpick back into the test tube and cover the whole thing with plastic wrap - Leave for 20 minutes - Remove the paper and let it dry GL bros

Great sir

Great video. Thanks

The explanation is fun and clear

he's so adorable, thats besides the point lmao, this video actually helped me and got me more enthusiazed for chem

Excellent video.. and I really liked your personality.. Keep it up.

Thank you teacher

Your voice reminds me of LeVar Burton, and that's pretty cool! Good video too!

Did you try the red or yellow leaves? =] love this stuff!

ITS VERY INTERESTING THANKU THANKU

This is like the informative version of the 'this is how you cut kale stems' eHow video

The explanations were very helpful!

@tufayelmiah7969

7 жыл бұрын

Thank you!

How i can estimate vitamin A from a tomato

do you boil perroleum ether and propanone when added in test tube ????

Thanks! :)

super video it's clearly understanding

What is the name of the liquid you put in the morter? (when you add the sand)

@lisabeckman9636

7 жыл бұрын

95% Ethanol (Ethyl alcohol)

What pigments did he find?

Very nice so thanks

He‘s a lefty 😱😱

how can we calculate RF value from Ur chromatogram,?what u add to grinding spinach before alcohol,why?

@taratara3379

7 жыл бұрын

Poornima Kommoju rf equals to distance moved by pigment from original spot divided by distance moved by solvent from original spot

Really helping video

thanks!

has twenty minutes really passed or was there just another test tube already done? :)

this is my brother omg never knew he had appeared here

@sami66666

3 жыл бұрын

well you should’ve asked him

@rauha.r4675

3 жыл бұрын

REALLY UR BROTHER YEETED THAT PLANT ITS FUNNY AHAHHAHAHHAHAHHAHAHA

@rauha.r4675

3 жыл бұрын

ARE YOU HIS SISTER OR BROTHER???

Thank you

I did not understand why alcohol is used and water can not be used

would this work with other things, like a banana for example, to extract other types of pigment molecules??

@chaoxknight7228

8 жыл бұрын

+Ashleigh Braganza It will work with any type of leaf, but not with bananas! A banana is a fruit! JEEZ!!

what are the leaves we should use (other than spinach) to see the results distinctly and clearly ? PLS HELP !

@lacimenethill

9 жыл бұрын

trees leafs for example

@ashi3321

9 жыл бұрын

thank you.... :-)

@miajscott

5 жыл бұрын

My teacher recommends Kale, Lettuce, Spinach, Collard Greens, or Romaine Lettuce. But you should avoid using endives, iceberg lettuce, or leeks.

Can i use 80 proof ethanol to extract the Chlorophyll?

@morganm1931

3 жыл бұрын

Yes but add more than you would with 95%

@Desmond000007

3 жыл бұрын

@@morganm1931 ok thanks. I'm trying to make a bright green sprayable liquid varnish/glue that will slowly lose its bright green colour (chlorophyll) Do you have any tips?

Can u please say what is a filter paper and where we can get it

@miajscott

5 жыл бұрын

You can use a coffee filter or cheesecloth.

thanks

disappointed to see him tossing that potted plant at 0:44 :(

@pancake577

4 жыл бұрын

he really do be ruining that plant’s life doe 😳😳😳

Nyc..

Thanks 👍🏼

nice

NC

Why a plastic wrap? Is it so that the solution is not exposed to air? But whats gonna happen if it is? Will it not work then? Im asking this because its really hard to find a plastic wrap like that one where I live.

@bismyan1019

7 жыл бұрын

I would say the ethyl alcohol, which has a boiling point of ~78 °C, would evaporate and leave the exposed test tube. Ethyl alcohol is flammable and poisonous with skin contact or ingestion in its pure forms. So if you plan to do this, do it under caution.

@nancynjeri9684

7 жыл бұрын

Nick Biggelaar

good

Total Chlorophyll: 20.2(A645) + 8.02(A663) Chlorophyll a: 12.7(A663) - 2.69(A645) Chlorophyll b: 22.9(A645) - 4.68(A663) some one please tell me what are these values 12.7, 2.69, 22.9, 4.68

What a nice guy

What solution he has added to spinach????

@devil_in_the_cqmu

7 жыл бұрын

Laraib Sultan: ether alcohol

@lisabeckman9636

7 жыл бұрын

95% Ethanol (Ethyl alcohol)

@chetinrandhawa1564

6 жыл бұрын

Rubbing alchohol

what are the names of the other pigments

@josephv4174

8 жыл бұрын

Xanthophyll and Carotene

Noice

thank you😊😊😊☺☺😃😃

2013??? Bruh

Op video xd

@Shresthasaksham265

3 жыл бұрын

U naughty naughty u teasing me u naughty naughty

I like it...

thnx

Hindi me video banaye sir

❤️❤️

i love you

Virk explained it poorly😕

weird choice of music tottally

5 Е привет я Кайсар

fais toi pousser le bouc et la moustache je te jure tu serais plus beau ma vie

Lol

You should not throw a plant like that .

@rauha.r4675

3 жыл бұрын

Bruh it's just to teach Interestingly And besides the explanation was very clear You are taking it more serious WTH

pretty stinky

cringy af

@rauha.r4675

3 жыл бұрын

Not more than you:)

Bad pictures

I don't like it i give dislike

@rauha.r4675

3 жыл бұрын

It would be better if you keep your opinions to yourself:)

terrible

@rauha.r4675

3 жыл бұрын

He's trying his best and it wasn't terrible Stop being nagative:)