1
a large board with a smooth dark surface for writing on with chalk
3
Bag or pouch that attaches to the back by straps and serves to carry various personal items.
8
Science that studies the formation and origin of the Earth and its component materials inside and out
9
Piece of rubber material specially prepared to remove the pencil or ink on the paper
10
A person who is dedicated to teaching
13
an adhesive substance used for sticking objects or materials together
