A lot of that depends on what kind of camp you're going to, what time of year it is, and what activities will be going on. A good place to start is, as always, your Scout Handbook--turn to page 268 for a checklist that should serve you well in most camping situations!
This is what you'll find there:
These 10 items are good to have with you, anytime you're out in the wild.
Pocketknife
First Aid kit
Rain gear
Water bottle
Flashlight
Matches and fire starte
Sun protection
Compass
Insect repellent
Bring clothes appropriate for the weather and season. Choose materials that will keep you warm and dry, such as wool, wicking fabrics, etc. Dress in layers so you can adjust as you get warm or cold.
Sleeping bag - with an appropriate temperature rating.
Sleeping pad
Pillow, if desired
Eating utensils
Plate
Bowl
Cup
Soap
Toothbrush
Toothpaste
Dental floss
Comb
Small towel
Watch
Camera
Pencil or pen
Small notebook
Scout Handbook
When Camping with Troop 1, you won't need your phone or other electronic distractions, please leave them at home, or have a leader lock them in a vehicle.