Beakman explains that bread is an important food staple and there are different kinds of bread. He uses an animated clip to give some history of people creating bread. Then he explains the science behind how bread is made. Beakman uses a demo of yeast with water and sugar to show that yeast are living and create carbon dioxide and that's how bread rises.

This clip explains how yeast and flour are used to make bread.

The Eds are making pizza, and they need to correctly measure the ingredients they put in the dough and the sauce. Eddy ignores Double D's measurement for yeast and has trouble kneading the dough. Although the yeast wouldn't grow until they baked the dough in the oven, this clip illustrates how fast yeast can grow.

The kids find tricks to figure out their times tables.

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.