Mr. Wizard demonstrates that wheels don't always need to be round to function as wheels.

Sal puts all of the polymers in his shop on sale, which means just about every item has been discounted. He mentions the different types of polymers that exist and illustrates that they are more than plastics.

When Cro and Pakka meet for the first time, Cro shows her his new trick w a log. She explains to him that it is actually a lever that he is using and how it works.

Buster Beaker explains how high and low tides are affected by the gravity of the moon and the sun. He illustrates the phenomenon using a cookie, a mushroom, and a lemon.

Jackie, Matt, and Inez brainstorm how to build a ramp to get up the steep cliff to the island. They create a design for the ramp such that it can be easily transported and will serve the purpose of getting them to the island.