# data[].attributes.body
I learned about rough and clear surfaces.

# data[].attributes.body
the eraser activity was very interesting

# data[].attributes.body
I have learnt about friction.

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i learnt about frictional force

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I learn about  how to reduce friction and  objects that can reduce friction

# data[].attributes.body
I learned about how we can reduce and increase friction

# data[].attributes.body
I know  every  thing in today's lesson

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I learned where is friction less or more.

# data[].attributes.body
i learn about friction i

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were do the frictional force produce.

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I learned about when friction is more and when is less

# data[].attributes.body
I learn about  effects of friction

# data[].attributes.body
I learnt that that there is more friction on tough surface.
I think that every thing was very interesting.
I have no question

# data[].attributes.body
I learnt how water reduces frictional force  I don’t understand how the mat makes it go farthest

# data[].attributes.body
I learn about where is friction more or less

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On which surface you observed the most frictional force and why?

# data[].attributes.subject
On which surface you observed the most frictional force and why?