What is a raw fleece and what can I do with it?

A raw fleece is the wool that has been shorn off the sheep in spring, and skirted.  (Skirting is the process of removing heavily soiled and other undesirable  parts.  It is not washed and still contains the natural lanolin.

What is roving and what can I do with it?

Roving is wool that has been washed, and carded (brushed) into  a long, neat bundle that is ready for spinning into yarn. It can also be used unspun for weaving,  felting, and other crafts.

What is a batt and what can I do with it? 

Batts are wool that has been washed and carded (brushed) into flat, rectangular shapes and are available in multiple sizes. Batts are used for felting, stuffing pillows, quilts, comforters, dog beds, etc.

What is the difference between soft and lustrous  fleece?  

Luster refers to the shine of the wool.  G