Warm them up each practice by having them move the ball around with both feet, developing a feel for how the ball moves when they touch it with the insides of their feet, the outsides of their feet, their laces, etc. Simple passing, both short and long, adding movement as they progress. Dribbling through cones. Start with the cones spaced widely apart and move them closer as they progress. Add relays for fun and an additional challenge.
Kids love to trap the ball.
Pair them up and have them serve the ball to each other for foot traps, thigh traps, and chest traps. You can introduce softly served headers too. After they ve gotten pretty good at static traps, have them move across a space while serving and trapping the ball. You will also want to teach them the rules of the game, and basic positional soccer. At the younger, beginning stage, you should encourage your players to try out many different positions on the field.