Changes

* '''Website interactives/ links/ simulations'''

* '''Website interactives/ links/ simulations'''

* '''Process (How to do the activity)'''

* '''Process (How to do the activity)'''

#Heat a piece of iron and watch the iron changes colour.   

#Heat a piece of iron and watch the iron changes colour.   

#Show the video and discuss the questions below, alongwith the observations above

#Show the video and discuss the questions below, alongwith the observations above

iv. Understand the idea of primary additive colours and primary subtractive colours and how differe

iv. Understand the idea of primary additive colours and primary subtractive colours and how differe

===Notes for teachers===

===Notes for teachers===

For some helpful tips on primary colours and the pigment mixing activity below, watch the following videos.

For some helpful tips on primary colours and the pigment mixing activity below, watch the following videos.<br>

<br><br>

Colour mixing in Paint<br>

 

{{#widget:YouTube|id=mP6umvMsBrE}}<br>

Primary Colours<br>

{{#widget:YouTube|id=ksS-FJ3B8Og}}<br>

|#{{#ev:youtube| mP6umvMsBrE| 150| left}}<br>Colour mixing in Paint<br>

|#{{#ev:youtube| ksS-FJ3B8Og| 150| left}}<br> Primary Colours<br>

===Activity No #1A -  Mixing pigments===

===Activity No #1A -  Mixing pigments===

#If we shine the torch on a white paper so that we get a clear circular image of each of the colours.

#If we shine the torch on a white paper so that we get a clear circular image of each of the colours.

#Observe what happens when

#Observe what happens when

*The red beam and green beam are mixed<br>

*The red beam and green beam are mixed<br>The red and the blue are mixed<br>The blue and the green are mixed<br>When all three of them fall together<br>

*The red and the blue are mixed<br>

*The blue and the green are mixed<br>

*When all three of them fall together<br>

#Repeat the experiment but this time use only one torch.  Now keep placing different colour sheets tightly over the torch beam adding them one by one. And find out the colour of the beam that comes through. We should find that we get similar combinations as when the beams are mixed – only the light will be weaker.  

#Repeat the experiment but this time use only one torch.  Now keep placing different colour sheets tightly over the torch beam adding them one by one. And find out the colour of the beam that comes through. We should find that we get similar combinations as when the beams are mixed – only the light will be weaker.  

#Observations written in an organized format - aim of the experiment, method and questions below are to be answered in the observation

#Observations written in an organized format - aim of the experiment, method and questions below are to be answered in the observation

= Fun corner =

= Fun corner =

 

[[Category:Class 9]]

Create a new page and type <nowiki>{{subst:Science-Content}}</nowiki> to use this template