Tamil Nadu Primary School इयत्ता ४ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Identify and mention the types of simple machines.

______	______	_______
______	______	______

______ help us to make work easier.

Rearrange the letters and find out the name of the tool.

R L E V E

Name some simple machines.

Simple machines usually exchange a larger force to move a heavy object.

The idea of a simple machine originated with the Greek philosopher Archimedes.

Simple machines makes work easier by trading ______ for force.

Complete the figure with words given in the bracket.

(Kissing on the mouth, Grand parents’ love, Hitting the buttocks, Pat of dad on head, Parent’s hug and kisses, Showing awkward pictures)

Say true or false.

Father patting you on your head is a good touch.

Good touch is a fair and ______ touch.

What do you do when someone touches you and you feel uncomfortable?

_______ is a machine made up of wheel and rope.

Complete the table.

Is it Good touch or Bad touch? Why?

A	B

Look at the pictures and write ‘Good Touch’ or ‘Bad Touch’.

______	______	______	______
______	______	______	______

Match the following:

List out the activities related to bad touch.

A pulley is a machine made up of a ______.

An example for inclined plane is _______.

Rearrange the letters and find out the name of the tool.

E D G E W