A clear material that can be used to make windows and bottles. It is breakable.
Glass

Traits or features of an object that you can see.
Properties
Not easily broken or pierced
hard
an even and regular surface
smooth
A ___________is something that keeps its shape. You can touch it and hold it, and it does not change shape easily.
Solid
A hard rock found in nature that is used to build things
Stone
How heavy an object is
Weight
The ability to soak up liquid
absorbent
cannot be seen through
opaque
A __________ can flow and take the shape of its container, but it still stays together.
Liquid
A solid material from trees used to make furniture and toys.
Wood
How an object feels to the touch
texture
lacking shine or brightness
dull
springs back once stretched
elastic
A ________ spreads out and fills up all the space around it. You usually can’t see it, but it is still matter.
Gas
A strong material that is shiny and is often used for cars and tools.
metal
the ability of an object to bend
flexibility
Hard but may be easy to break
Brittle
allowing some light to pass through
Translucent 
A stretchy material used for things like tires and erasers.
rubber
How easily you can scratch the surface of an object
hardness
unable to be bent or forced out of shape
rigid
can be seen through
transparent 