hi, i am so new at this project stuff and i want to ask a simple question...can we define two separate resource sheets for one task...for example i would like to have one resource sheet for just works and for one just materials, and use these two sheets for one project...

The resource sheet view allows you to create all three types of resources - work, material, and costs. No need for separate resource sheets - just different resource types.

You can then filter tasks looking for just those with a specific resource or a specific resource type.