Episode list

Rain interrupts the TreeSchoolers' plans to play outside. The lightning and thunder scare Abacus Finch. Rachel and the TreeSchoolers show Abacus that understanding something can make it less scary.

The TreeSchoolers are having a Flower Fair, and each is bringing their favorite. Bongo doesn't know what his favorite flower is or where flowers come from. Rachel and his friends work together to learn about the parts of plants, photosynthesis, how plants grow, what plants need to survive, and how it is okay for everyone to like different things.

Hue the firefly feels insignificant and worthless because as an insect he is very small. His friends want to learn more about insects, and Rachel leads them on a lesson of discovery. They learn what makes insects different from other animals, the many ways they are the same, and the many ways they are different from each other. Hue learns that even the smallest creatures are important.

The TreeSchoolers are having a talent show, and everyone is demonstrating their abilities -- everyone except Penny. She doesn't know what her special talent is. As the talent show progresses, the TreeSchoolers learn many amazing things that animals can do. In the process, Penny discovers some truly special things about herself.

The TreeSchoolers believe that they have never met a human, and they are very curious about these strange creatures. As they learn what makes humans different from other animals and how their bodies work, they begin to suspect that maybe they have met a human after all.

Abigail's recital is coming soon, but she is feeling sick. Hoping their friend will get better quickly, the TreeSchoolers learn about what causes sickness, how to take care of their bodies, and ways to practice safety every day.

It's time for a science fair at the TreeSchool. Everyone has an experiment to share, but Isaac's is not working yet. The TreeSchoolers learn about magnetism, the states of matter, light, density, and the scientific reasoning process. Most of all, they learn to keep trying when they face setbacks.

Chroma receives a letter from Fiji, and this causes the TreeSchoolers to want to learn more about the planet Earth.

Simon worries that someone is stealing the moon. To help him understand what is really happening, the TreeSchoolers learn about the planets, gravity, and the phases of the moon.