fact and question: sending electricity through a conductor causes electricity to flow through that conductor
Question: Electricity sent through a conductor

What's the answer? OPTIONS:
- halts the functioning of the conductor
- moves like traffic through a green light
- causes fire to flow through the conductor
- flows heat back to the conductor

answer: moves like traffic through a green light

fact and question: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone
Question: This would be associated with a lack of sunlight:

What's the answer? OPTIONS:
- a wide sandy desert
- carbonic acid in groundwater
- a tropical beach scene
- a rice plantation in the North

answer: carbonic acid in groundwater

fact and question: a radiator is a source of heat
Question: When would you want a radiator the most?

What's the answer? OPTIONS:
- winter
- spring
- fall
- summer

answer: winter

fact and question: migration is when animals move to different locations in an annual cycle
Question: migration is when animals travel from the northern most state to Texas during what segment of time?

What's the answer? OPTIONS:
- lake fronts
- birds
- winter
- spring

answer:
winter