The letter C curves.
The letter C is a partial circle.
curved
Accurate.
Its carrus
cardcycadcupidcubedcuredcurdscrowdcriedcreedcoyedcowedcouldcotedcoxedcovedcoredcopedconedcoledcokedcooedcodedcloudcluedchordcitedchildchardceredcededcebidcavedcasedcanidcairdcagedcawedcauldcaredcapedcanedcakedcurdcuedcrudcordcoedclodcladchidchadcaid
A science word that is six letters ans starts with the letter c is convex.
curved
The letter C curves. The letter C is a partial circle.
bold
Canada
The word is create.
combat
Catnip
Accurate.
Its carrus
Here are some possibilities:CarbonCapsidCarboyCationCeriumCesiumCetaneChargeCobaltCopperCurium
create create
Cobweb does, as does Cherub.