A kindergarten-level introduction to the self-propelled vehicles known as bicycles, covering their purpose, parts, and operation, and such defining features as their wheels and handlebars.
A kindergarten-level introduction to the vehicles known as scooters, covering their purpose, parts, and operation, and such defining features as their decks and brakes.
A kindergarten-level introduction to the motorized vehicles known as snowmobiles, covering their purpose, parts, and operation, and such defining features as their skis and tracks.
A kindergarten-level introduction to the self-propelled vehicles known as skateboards, covering their purpose, parts, and operation, and such defining features as their decks and trucks.
A kindergarten-level introduction to the motorized vehicles known as jet skis, covering their purpose, parts, and operation, and such defining features as their throttles and impellers.