Friday, July 24, 2020

Home / Science / 7TH STANDARD. SCIENCE CH: 2. ACIDS AND BASES. LIVE EXPERIMENT WITH INDICATOR

7TH STANDARD. SCIENCE CH: 2. ACIDS AND BASES. LIVE EXPERIMENT WITH INDICATOR

by Web School Academy on July 24, 2020 in Science

7TH STANDARD.
SCIENCE CH: 2. ACIDS AND BASES.
LIVE EXPERIMENT WITH INDICATOR.

HI STUDENTS …

IN THIS VIDEO YOU WILL LEARN ABOUT THE INDICATORS

WHAT ARE INDICATORS?

HAVE YOU OBSERVED ANY CHANGE WHEN

LIME WATER IS ADDED TO TURMERIC?

DO THE FOLLOWING EXPERIMENT?

TAKE SOME TURMERIC POWDER. ADD A BIT OF WATER TO IT AND PREPARE TURMERIC PASTE. RUB THE TURMERIC PASTE ON A WHITE PAPER. DRAW A FLOWER ON THAT PAPER WITH A PENCIL. COLOR THE FLOWER WITH SOAP WATER USING A BRUSH. WHAT DO YOU OBSERVE?

DO YOU OBSERVE ANY CHANGE OF THE COLOR OF THE DRAWING?

YOU WILL DEFINITELY OBSERVE THE CHANGE OF THE COLOR OF THE TURMERIC PAPER.

SO, THIS CHANGE OF THE COLOR OF THE TURMERIC PAPER IS BECAUSE OF THE TURMERIC ACTING AS INDICATOR SHOWING THE NATURE OF THE SOAP WATER. HERE WE CAN UNDERSTAND THE NATURE OF THE SOAP WATER IS BASE. IT IS SLIPPERY IN NATURE AND BITTER IN TASTE.

FOR MORE INFORMATION PLEASE WATCH THE VIDEO.

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