Q: Fact: air is a vehicle for sound
Question: What makes it difficult to hear on the moon?

A: lack of air

Q: Fact: when electricity flows to a light bulb , the light bulb will turn on
Question: A glass item will do this when power is fed to it.

A: illuminate

Q: Fact: sending electricity through a conductor causes electricity to flow through that conductor
Question: A person pushing energy through a metal beam will cause something to

A: electrify

Q: Fact: a glacier is made of ice
Question: Glaciers have

A:
slow, hidden rivers