Fact 1: Aradio converts electrical energy into vibrations. Fact 2: Electric energy is stored in batteries. Given the two facts above, what does a radio use to make vibrations?

OPTIONS:
- waves
- rays or beams
- a battery
- an object
- barrel-shaped
- nerves
- Loud noises
- it needs them

Answer: a battery

Fact 1: Coal is used for generating heat by burning. Fact 2: Dead vegetation settles and becomes peat, a precursor of coal. Given the two facts above, what becomes something that is burned to generate heat?

OPTIONS:
- glass
- dead vegetation
- Fuel cells
- preserved vegetation
- Electrical energy
- hydrogen and oxygen
- clouds
- electricity

Answer: dead vegetation

Fact 1: Aswitch is used to start the flow of current in an electrical circuit. Fact 2: An electrical switch directs current to one of several wires. Given the two facts above, what directs current?

OPTIONS:
- streams
- switch
- rivers
- squids
- chemicals
- streams.
- hormones
- spring

Answer: switch

Fact 1: Translation reads the genetic code in mRNA and makes a protein. Fact 2: Gene expression can be regulated at the level of translation of an mRNA into a protein. Given the two facts above, what process reads and regulates gene expression?

OPTIONS:
- organs
- sensory neurons
- A computer
- Plants growth
- translation
- sweating
- heat or cold
- Most plants

Answer:
translation