Twin Motocross Racers Tamara and Tara explore what impact their body positions have on their motorcycle jumps, while Skateboarders Scott and Anthony experiment with different sized wheels that have the best in terms of maximizing speed and maneuverability.

Cancer survivor Jeff and his sister Jenny conduct a study with kids undergoing medical treatments to see if pets can help lessen pain.

Cameron and Ashley investigate if skipping breakfast affects their classmates' testing abilities and nutritionist, Corey Scott, researches the nutritional composition of fruits and vegetables to help develop healthier snacks.

Megan, Monica, Jenny and Emilia create miniature weather monitors and launch them on their model rockets to learn what it takes to successfully record data on a distant planet.

Kha and Peta, young martial arts athletes, determine how different tae kwon do moves challenge their bodies’ skeletal and muscular systems and then apply what they learned in competition.

Kid engineers Bob and Brennan fine-tune the number of tire studs required to speed a bike across a frozen lake.

Ebony and Jasmine catch the Amazing Nano Brothers Juggling Show at the Museum of Science (http://www.mos.org) in Boston.

Finally, with help from scientists at Harvard University, they compare the tensile strength of the sticks and use powerful microscopes to "see" carbon nanotubes.

They conduct soda explosion experiments in the museum's Big Back Yard, investigating how surface area affects reactions.

They visit a lab at the University of California, Berkeley to find out why, learning that special, nanoscale hairs on gecko feet are the secret to their amazing climbing abilities.

The kids then try out a similar technique at home, encapsulating chocolate sauce, mint and other flavors in alginate beads to serve on ice cream.

They collect soil samples from a contaminated site, then take them to Penn State University to test the efficacy of nano-iron treatments.