Q: Fact: skin is used for protecting the body from harmful substances
Question: If a person is going to be in an area with acid rain, the organs in the body can be unharmed because of

A: outer organ protection

Q: Fact: a simple machine requires mechanical energy to function
Question: A simple machine like a screw will need

A: a person adjusting it

Q: Fact: carpet absorbs sound
Question: What could be put on a wall so that a neighbor stops complaining about your guitar playing at night?

A: carpet

Q: Fact: cycles of day and night occur once per day
Question: Which three events are likely to occur once per day?

A:
a cycle of day, a cycle of night, and birds chirping as the sun rises