Exam 9: Wood

Wood is a(n) ____ material, which means that it changes dimension differently in different directions.

____ grain and radial grain refer to orientation of the growth rings in a board and are best understood by viewing a cross section of the tree.

The ____ is a person who has been trained to distinguish the different grades of wood and sort them accordingly.

Wood that has been air-dried is considered by many woodworkers to be superior to kiln-dried wood.

Most mills use a sawmill to square up logs.

____ grain refers to the grain running the length of the piece from end to end.

The ____-drying method allows the wood to season naturally, but it takes considerably longer.

Trees can be divided into two main categories: hardwoods and softwoods.

A board exhibiting ____ on its face was cut along a radius running from the center of the tree outward.

The circular rings surrounding the pith are the ____ rings.