Fact 1: Aradio converts electrical energy into vibrations. Fact 2: Sound Sound waves are caused by vibrations in the air. Given the two facts above, what creates sound waves?
OPTIONS:
- a curling iron
- energy
- carpet
- animals
- dolphins
- Gunshots
- a couch
- a radio

Answer: a radio

Fact 1: Testosterone stimulates the reproductive organs to develop into male organs. Fact 2: Male mammals have a tube-like organ called the 'penis'. Given the two facts above, what causes the penis to develop?
OPTIONS:
- Creatine
- Energy
- Estrogen
- Testicles
- matter vibrating
- Testosterone
- movement
- It expands

Answer: Testosterone

Fact 1: Many plants respond to the days growing shorter in the fall by going dormant. Fact 2: Plants are dormant in the winter. Given the two facts above, what causes plants to sleep?
OPTIONS:
- winter
- heat
- lmestone
- sweating
- photons
- Sun
- Light
- air cools

Answer:
winter