Simplify the following text for a Grade 10 native English-speaking person.
Original: Kittens are weaned at between six and seven weeks , and cats normally reach sexual maturity at 5 â `` 10 months ( females ) and to 5 â `` 7 months ( males ) , although this can vary depending on breed .
Simplified: Kittens are weaned at between six and seven weeks , and cats normally reach sexual maturity at 5 â `` 10 months ( females ) and to 5 â `` 7 months ( males ) .