Juggling science
If you've seen the show you'll know there is lots of science in juggling.
Depending on the age and stage of the audience the juggling scientist might speak about gravity (and magnetism), simple forces (pushes, pulls and twists), that forces come in pairs, that those pairs of forces can be balanced or unbalanced, about balancing objects and how spinning objects balance better due to gyroscopic stability.
It is also possible to examine other concepts in physics and lots of other concepts in maths.
This link (to a large pdf) covers some more of the science of juggling.
Depending on the age and stage of the audience the juggling scientist might speak about gravity (and magnetism), simple forces (pushes, pulls and twists), that forces come in pairs, that those pairs of forces can be balanced or unbalanced, about balancing objects and how spinning objects balance better due to gyroscopic stability.
It is also possible to examine other concepts in physics and lots of other concepts in maths.
This link (to a large pdf) covers some more of the science of juggling.