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From Karnataka Open Educational Resources
Creation of a rainbow in a glass (view source)
Revision as of 10:55, 27 November 2015
, 10:55, 27 November 2015no edit summary
__FORCETOC__
__FORCETOC__
=Activity No # 1 - '''Name of Activity'''=
=Activity No # 1 - '''CREATION OF A RAINBOW IN A GLASS'''=
==Estimated Time==
==Estimated Time==
16 Min
==Materials/ Resources needed==
==Materials/ Resources needed==
#5 Glass Beakers
#4 Food Colours ( Red, Yellow, Green , Blue) Optional -(Ujjala for Blue)
#Sugar
#Water
#spoons
#Spirit Lamp
#Tripod Stand
==Prerequisites/Instructions, if any==
==Prerequisites/Instructions, if any==
==Multimedia resources==
==Multimedia resources==
==Website interactives/ links/ simulations==
==Website interactives/ links/ simulations==
==Process (How to do the activity)==
==Process (How to do the activity)==
'''STEP 1''': Add 1 tablespoon of sugar to the first glass, 2 tablespoons of sugar to the second glass, 3 tablespoons of sugar to the third glass, 4 tablespoons of sugar to the fourth glass. Keep the fifth glass empty.<br>
'''STEP 2''':- Add 2 tablespoons of water to each of the first 4 glasses. Stir each solution and heat it till sugar dissolves.<br>
'''STEP 3''':- Add 2-3 drops of red food coloring to the first glass, Add yellow food coloring to the second glass, green food coloring to the third glass, and blue food coloring to the fourth glass. Stir each solution.<br>
'''STEP 4''':- Fill the last glass about one-fourth full of the blue sugar solution. Carefully layer some green sugar solution above the blue liquid. Do this by inverting a spoon in the glass Similarly add the Yellow layer and finish it with the red solution.<br>
'''DISCUSSION''':-
You can use the rainbow project as a decoration or to teach principles of density, concentration, refraction, dispersion etc.
[[File:1.jpg|400px]]
==Developmental Questions (What discussion questions)==
==Developmental Questions (What discussion questions)==
#What is a rainbow?
#When do you see a rainbow ?
==Evaluation (Questions for assessment of the child)==
==Evaluation (Questions for assessment of the child)==
#What is Reflection ?
#How is a rainbow formed ?
==Question Corner==
==Question Corner==
'''To link back to the topic page'''
'''To link back to the topic page'''
[http://karnatakaeducation.org.in/KOER/en/index.php/'''Give the link of the page name from where activity was given''' Back]
[http://karnatakaeducation.org.in/KOER/en/index.php/'''Give the link of the page name from where activity was given''' Back]
