“Science, everybody,” said Mr. Todd. “Let’s continue our discussion of the environment. Rain forests everywhere are being cut down. When you take medicine or bounce a ball or pop a balloon, you’re using something that came from the rain forest. And right here at home, malls are replacing trees, animals are disappearing, and we’re running out of places to put all of our trash.

“Today, let’s come up with ways we can help save the earth. Sometimes it’s good to start small. Think of ways we can help at home. In our own families. And at school. Any ideas?”

“Don’t leave lights on,” said Hailey.

“Recycle your homework,” said Frank.

“And cans and bottles and stuff,” said Leo.

“Turn garbage into dirt,” said Rocky.

“Yes,” said Mr. Todd. “That’s called composting.”

Judy raised her hand, knocking her note to the floor. “Plant trees!”

“Don’t be litterbugs,” said Jessica Finch.

“I wasn’t littering,” said Judy, picking up the note. She crossed out the Finch in Jessica’s name and changed it to Jessica Fink. Sheesh. Sometimes Jessica Fink Finch gave her the jitterbugs.

“Great!” said Mr. Todd. “These are all good ideas. Look around you—at home, in school, on the playground—not just in Science class. How can we help the planet? How can we make the world around us a better place? We can each do our part. All it takes is one person to make a difference.”

One person! If all it took was one person, then she, Judy Moody, could save the world!

She knew just where to start. With a banana peel.