First time camping essentials, with two kids

Hello everyone, I’m a single mom with two young kids. We love hiking/being outside but we’ve never actually been camping before. I always wanted to but never had anyone who wanted to come with, so I figured, f it I’ll take them myself.

I have exactly nothing as far as camping gear/equipment so what are some essentials we need? We live in northeast PA and will probably go up to worlds end in two weeks. The weather here has been around 70-90, a little bipolar for this area, lots of rain and colder at night so I’m trying to keep that in mind!

Any help would be greatly appreciated. Thanks a lot :)