The basics
How does a submarine dive?
Subs fill ballast tanks with water to get heavier and sink, then push water out with air to surface again.
Vehicles · Submarines
Submarines: Ships That Dive
Ballast tanks, periscopes, and how subs explore underwater.
Vehicles / Submarines
Submarines — what curious minds want to know
Dive, surface, and explore beneath the waves.
Ballast
Dive control
Underwater
Mission zone
Crew
Life aboard
Sonar
Listening tool
Life inside
What’s it like aboard?
Crews share tight spaces with recycled air, bunks, and instruments — a floating lab under pressure.
Submarines FAQ
Usually tiny ports or cameras — thick hulls matter more than views.
Keep exploring
Go deeper in the Giant app
Download Giant for interactive learning adventures — ask questions, talk with characters, and follow curiosity wherever it leads.
Download Now
