Talk about how seals and dogs balance balls on their noses. Provide styrofoam balls for the children to try and balance on their noses, head, feet, etc. Every circus needs a band. Make band instruments. Also use pots and pans for rhythm instruments.
Wooden spoons are good drumsticks.
Put on a record with a good beat. Balloon Balance Draw or mark a circle on the floor, or on the playground. The child keeps the balloon in the air by not stepping out of the circle. The size of the circle is determined by the children's age and ability. Balloon Experiment Have a small container of vinegar and one of baking soda on the science table.