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.
Canada
bold
The word is create.
Accurate.
Its carrus
Catnip
combat
create create
Here are some possibilities:CarbonCapsidCarboyCationCeriumCesiumCetaneChargeCobaltCopperCurium
Cobweb does, as does Cherub.