Carbon dioxide is essential for Photosynthesis proved with simple experiment - Science

This is Science video for Grade 9-10 students with a simple experiment to prove that Carbon dioxide is essential for Photosynthesis.

[nafisaahmed]

sometimes notes written in the textbook lacks visualizing the experiment so it's often difficult for students to understand the process. Thanks to your video, this was of great help!

[diananggraini]

I like it. The explanation is easy to understand.

[sandaleepatiyal]

The leaf wasn't boiled in alcohol before testing with iodine to remove chlorophyll.
However explanation was good 👍👍

[brd]

The most important reaction for any life to exist. Clearly. Starch in leaves is formed by photosynthesis. Starch is stored energy. Potatoes have starch. The instant and useful energy source for all.

[suhani]

Explanation was excellent 😎
Easy to understand 😎😎

[saraswotikarki]

I like the video but I have a doubt. If potassium hydroxide solution absorbs all the carbon dioxide then why the leaf which was put inside didn't reserve any carbon dioxide. Can you please clear my doubt. 

[bhogeshsaikam]

Very helpful video in my 10class student 👌👌

[kanaklatasingh]

Thanks a lot
Your short video save my long time..

[poojamehta]

You explain better than my science teacher. I liked it

[uttejraj]

The leaf can't boiled in alcohol

[Nazia_]

You need to boil the leaf and then dipped in alcohol then water bath the test tube till the alcohol begins to boil. After that we can observe the color change of the leaf where there is starch when it is dipped in iodine soln.

[rloganathan]

Very useful for my project. I really liked this video .thank u

[ksumar]

I think you need to remove the Chlorophyll by boiling the experimental leaf in water first then put in Ethanol in test-tube to remove Chlorophyll=> hot water to soften it again.
Then test for starch with Iodine solution.

[nooraisyahahmad]

Hi. May I know what is the concentration of potassium hydroxide used?

[apoorva-yelp]

such a nice doubts are clear great
☺☺

[srinivasaraokotipamu]

What is the use of to keep in dark r9om

[avikagupta]

If the plant on the outer part is not treated with ethanol and boiling water how can the iodine effect in the colour change or the conclusion

[competitivescholar]

how it turns in to black while in other experiment we use metaldne spirit and will boil leaf and then iodine but in this experiment it's not there

[vikasnarkar]

it was not tested by ethyl alcohol ... only iodine but it was a helpful video. .. as I am in 7th standard

[ksumar]

Would other Hydroxide work like NaOH, Ca(OH)2 to remove CO2