Submarines can dive thousands of feet deep
Submarines can stay underwater for months
Submarines use ballast tanks to sink and rise
Submarines use propellers to move through the water
Submarines use sonar to navigate underwater
Submarines have a periscope to see what's happening above the water
The first functional submarine was built in 1620 by Cornelius Drebbel

John Jr visits the USS Michigan (SSGN-727)

John Jr., with a bright smile, standing in front of a poster of a flip-diving ship

In a town, not far or near, lived John Jr., full of cheer. With hair of brown, short and neat, an adventure he'd soon meet. One day he heard of a ship, that could dive and do a flip.

The Big Adventure Begins

John Jr. in awe, looking at a model of the USS Michigan submarine

A submarine, grand and fine, named USS Michigan, it did shine. It could dive deep, oh so grand, deeper than any land. John Jr.'s eyes grew wide, an underwater ride!

A Submarine Named Michigan

John Jr. examining a cutaway illustration of a submarine, showing ballast tanks

Ballast tanks, for sink and rise, filled John Jr.'s eyes with surprise. Months underwater, it could stay, a magical place to play. Propellers moved it, swift and neat, an engineering feat!

Learning the Secrets

John Jr. peeking through a toy periscope, with ships and the sea in the background

With a periscope, up and tall, John Jr. saw over the wall. Ships and sea, both far and wide, a new world, opened wide. 'What magic!', John Jr. thought, a view that can't be bought.

A Peek with the Periscope

John Jr. listening intently to a speaker emitting sonar sounds

Sonar sounds, beep and bleep, secrets of the deep to keep. Navigating through the sea, as easy as one, two, three. John Jr. listened, in awe, to every sound he saw.

The Sound of the Deep

John Jr. smiling, holding a book about the first submarine built by Drebbel

In 1620, the tale's told, a submarine, brave and bold. Built by Drebbel, first of its kind, a marvel for mankind. John Jr. learned, with a smile, history worth his while.

A Dive into History

John Jr. with wide eyes, looking at a colorful fish in an aquarium

Fish of colors, bright and bold, treasures and stories, old. Underwater, a world anew, John Jr.'s dreams grew. With each dive, he saw more, wonders he'd never seen before.

Underwater Wonders

John Jr. animatedly telling his submarine adventure story to his friends

With hearts full, and minds wide, John Jr.'s journey, a joyride. Back on land, he shared his tale, of the submarine, grand and hale. Adventure found, in the deep blue, a story, forever true.