Help with setup / taking my son fishing.

I bought my son an Ugly Stik reel combo and plan to take him fishing this week. However, I'm not entirely sure what I'm doing. I went to Dick's and picked up some size 4 hooks, a 1 oz weight since we're fishing in a river with a strong current, and 10 lb line. I was planning on using worms for bait, but I'm not certain about what I need. Someone suggested Whopper Ploppers and just casting and reeling, while another person advised against it. Another suggested using liver for catfish. Honestly, I'm a bit lost. I just want to cast, relax, and hopefully catch and release some fish. Any advice on what I need and what a reliable rig would be is greatly appreciated. Also, do I need a bucket, pliers, knife, etc.?