Today's Rocket Words: Your 5 words and meanings to learn
periscope
A long tube that contains lenses and mirrors and that is used to look over or around something.
submarine
A vessel that can be submerged and navigated under water.
parallel
Two lines are parallel if they can go on forever with the same distance between them without ever crossing.
viewer
A device that is used to look at something.
enlarge
To increase in size.