Question

white flowers, and put it in the beaker for 6 to 8 hours. What do you observe? For
kids to ensure their safety
dertly Parents are requested to supervise
1
Connect a small buio with cell or battery with
the help of connecting wres as shown Cut one of its
connecting wire and connect its ends with dimerent
types of materials available at your home. Observe
the results and identify the behaviour of each
material. On the basis of your observations, make a
list of at least 10 items behaving as conductors or
insulators with justification You can also perform this
experiment with some other electrical device instead of small bulb
6 marks)
2 Take a bowl of ice put it out in direct sunshine and note its temperature after
every os minutes. What type of change in its temperature do you observe?
How
much time will take to melt completely? Now put the same water on a stove and
note down its temperature after every 30 seconds What type of change in our
temperature, do you observe now? How much time will it take to boil? Explain your
observations with the help of time and temperature chart (Perform this experienes
on a sunny day
(marks)
3
bedroom? Write the names of all of them. How they are connected to the power
Have you ever observed that how may electrical appliances are there in your
supply? Also draw a possible circuit diagram or block diagram to show thesis
electrical connectivity
Take a beaker (jar or jug) with some water and put some drops of red or blue
ink in it Take a tender twg of any flower plant with leaves and flowers, preferably
further examination cut across its stem and look for the presence of colored water
Explain your observations
(6 marks)
Collect at least six objects of different materials. Check them for their friction
by sliding an object on their surfaces. Now arrange them according to their friction
(high to low). How their friction can be reduced? Suggest some methods according
(6 marks)
to the materials
Page 6 of 9​

Answer 1

Answer:

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