Inquiry

LI:Today I am learning about a simple machine.
This week I am learning about how to make a simple machine.So this simple machine is called pulley.Pulley helps different kind of people with there work.And if we don't have a pulley it will be very hard for people because you have to clime up the stairs and return something very heavy to other  people.So remember that pulley is very very important to other people to use.