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Earn 100

In your place, what do you call a person who works with wood?

Important Questions on Changing Times

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Environmental Studies>Social Science>Changing Times>Workers at Construction area
What is a wedge? 
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
The doorknob is an example of wheel and axle.
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Environmental Studies>Social Science>Changing Times>Workers at Construction area

Find four types of simple machines from the following word puzzle.

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Environmental Studies>Social Science>Changing Times>Workers at Construction area
See-saw is an example of 
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
Name five simple machines.
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Environmental Studies>Social Science>Changing Times>Workers at Construction area

Identify the type of machine shown in the following cases.

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Environmental Studies>Social Science>Changing Times>Workers at Construction area
A _____ holds two objects firmly together.
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
Iron is a
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
What are simple machines?
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Environmental Studies>Social Science>Changing Times>Workers at Construction area

Choose the right word from the given options:

Simple machines are of _____ (two, six) types.

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Environmental Studies>Social Science>Changing Times>Workers at Construction area
Which simple machine can hold things together?
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
This is used to open lids.
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
Name the different types of simple machines.
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Environmental Studies>Social Science>Changing Times>Workers at Construction area

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Complete the above web chart.

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Environmental Studies>Social Science>Changing Times>Workers at Construction area
Only complex machines make our work easier.
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
We must get the cracked wires repaired by a plumber.   
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
Cotyledons are also called-
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Environmental Studies>Social Science>Changing Times>Workers at Construction area

Children are forced to work in a dark and dingy environment which affects their health.

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Environmental Studies>Social Science>Changing Times>Workers at Construction area
There are heavy loads which have to be loaded in the truck. Which machine will you choose for this work?
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Environmental Studies>Social Science>Changing Times>Workers at Construction area
A _____ is a machine which looks like a nail with grooves cut into it.