EASY
3rd CBSE
IMPORTANT
Earn 100

What is the difference between opaque and transparent objects?

Important Questions on Light and Sound

EASY
3rd CBSE
IMPORTANT
How does the length of a shadow change during the day?
EASY
3rd CBSE
IMPORTANT
With the help of examples, differentiate between pleasant and unpleasant sounds.
EASY
3rd CBSE
IMPORTANT

List any two ways to reduce noise.  

EASY
3rd CBSE
IMPORTANT
Why are there no shadows on a completely cloudy day?
EASY
3rd CBSE
IMPORTANT
Rina goes to school early in the morning. She comes back home at noon. 
Which picture suggests Rina going to school? Why?
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EASY
3rd CBSE
IMPORTANT
Rina goes to school early in the morning. She comes back home at noon.
Which picture suggests Rina is coming back from school? Why?
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MEDIUM
3rd CBSE
IMPORTANT
Make a list of ten sounds that you hear in a day. Group them as pleasant sounds or noise.
EASY
3rd CBSE
IMPORTANT

Classify the following thing as transparent, translucent, and opaque. 

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