Discover Your World With NOAA
What You Will Need
r Plastic coat hanger
r 6- or 12-volt DC motor (from a hobby
shop; part number LXJSS4 from www.
towerhobbies.com is a 6-volt motor; part
number 273-256 from Radio Shack is a
r Model boat propeller (from a hobby shop, or
visit www.towerhobbies.com and search on
r Epoxy glue
r Two pieces of #28 AWG stranded wire
(telephone wire), each about five feet long
r Electrical tape
r Two film canisters with lids
r Twelve nails, about three inches long or 1/4-
inch diameter bolts to use as weights
r One or two 6-volt batteries (two if you are
using a 12-volt motor)
r Container of water at least 18 inches deep
(bathtub, large laundry tub, etc)
r Hot glue gun
r Wire cutters or wire stripper or a sharp knife
r Optional: Hand drill and drill bit of same
diameter as the motor shaft
Make a simple version
of an underwater
remotely operated vehicle
Some underwater robots are controlled by
built-in computers, and can operate without
any connection to the surface. These are
called “Autononomous Underwater Vehicles”
(AUVs). Many underwater robots are attached
to a cable that allows a human operator to
control the robot’s movements from a ship
on the ocean surface. These robots are called
“Remotely Operated Vehicles” (ROVs).
What can swim deep inside the
wreck of the Titanic?
What can sit on the edge of
an erupting underwater volcano?
What can dive thousands of feet
below the ocean surface?
What can collect animals no one
has seen before from
the deep ocean?
Build an Underwater Robot
Underwater robots can!
nal Undersea Resear
ch Program (NURP)
What You Will Do
National Oceanic and Atmospheric Administration (NOAA)
ExplorE thE Earth
Science | Service | Stewardship
1. Do not connect a wire directly between the
two terminals of a battery. The wire will
rapidly become very hot and may start a fire