Tools help us

Tools help us in different ways.

Tools and machines make our lives easier.

Some tools are very simple (a few parts) and other are more complex (lots of

parts).

Examples:

This is a knife.

This is a hammer.

Examples:

This is a saw.

pliers

More examples:

This is a screwdriver.

scissors

spanner

How many parts do they have ?

Simple machines or

complex machines ?

A mobile phone has lots of parts.It is a complex machine.

A pulley has a few parts. It is a simple machine.

A drone has got lots of parts.It is a complex machine.

A saw has a few parts.It is a simple machine.