This Game is meant for Cub Scouts.
Decide for yourself if it is appropriate for your younger scouts or not.

rope with rolled up sock or knot tied in end for weight.
colored sidewalk chalk

Draw a 6 foot diameter circle on the ground.
Around this draw a 10 foot circle, then a 14 foot circle.

One leader stands in the middle of the circle and swings the rope around in a circle so it is at about floor level at the outer edge which should be just outside the largest circle.
All scouts stand outside the circle waiting to start.
On 'Go' signal, scouts enter the circle and jump over the rope as it comes by.
If a scout lands in the outer circle, he gets 1 point, second circle gets 2 points, and inner circle gets 3 points for each time he jumps over the rope.
If a scout is hit by the rope so he causes it to stop, he loses 3 points.
Play until someone reaches 10 points. As scouts get better, those that move to smaller circles will accumulate points faster.

The leader in the center can regulate the height of the rope by not swinging it too fast. He can swing it at his waist level which causes the inner circle to be more difficult to jump over.