Read the excerpt from "thomas edison: the master of improvement."
its glow was produced by electricity passing through a filament, or tiny piece of material
the inside of the glass bulb was a vacuum.
based on context clues, what is the meaning of the word filament?
a place where electricity is made
a very small piece of material
the inside of a lightbulb
the vacuum inside a bulb

Constructing an argument: in modern american society, the legalization of marijuana continues to be controversial and hotly debated. some people find it contradictory that certain "drugs"—such as tobacco and alcohol—are legalized even though they pose proven health risks, while marijuana, which has many medicinal applications, continues to be illegal by the federal government. what reasons do you think the federal government gives for outlawing marijuana, and do the reasons support the conclusion?