Part 2
Judy gets stuck taking her little brother Stink along when she and Rocky go to the shop to hunt for cool rocks. Stink finds a rock he is sure is a real moon rock — until Judy cracks it open. Never one to quit, Stink scrapes up the bits, bags them as “moon dust,” and sells them for fifty cents a bag, earning three whole dollars. Then, on Labor Day, Judy decides her old cat Mouse is too boring to be her “favorite pet” for the collage. She dreams of an exciting two-toed sloth, but at the Fur and Fangs pet store there are none — so Judy adopts a Venus flytrap instead and happily begins feeding it bugs.
| Focus | What It Means |
|---|---|
| Cause & Effect | How one event leads directly to the next |
| Character Relationships | How Judy and Stink act like real siblings |
| Content & Science | Real facts behind moon rocks and the Venus flytrap |
| Chapter | Key Events |
|---|---|
| Ch.3 | Judy takes Stink and Rocky to the shop to find rocks; Stink’s “moon rock” breaks, so he sells the bits as “moon dust” and earns three dollars |
| Ch.4 | On Labor Day Judy decides Mouse the cat is too dull; she wants a sloth but instead gets a Venus flytrap at the pet store and feeds it insects |
There are no wrong answers here — just think, guess, and talk:
- Stink turns a broken rock into three dollars. Have you ever turned a mistake or a leftover into something useful?
- Judy calls her cat ‘dull’ and wants a sloth instead. Is an unusual pet really better than a loving one? Why might Judy think so?
- Predict: Judy picks a Venus flytrap — a plant that eats bugs — as her pet. What could go interestingly wrong?
This is an independent study guide created by Garden Heights Academy to support reading comprehension and literary analysis. It contains original analysis questions and does not reproduce any text from the novel. Judy Moody is a work by Megan McDonald. This guide is not affiliated with, authorized by, or endorsed by Megan McDonald or any associated rights holders. Students should read the original book, available from libraries and booksellers.
ⓘ The vocabulary words in this list are selected to help you understand and complete this workbook. Some may not appear verbatim in the original novel.
- On Labor Day, Judy decides her cat Mouse is too dull to be her favorite pet.
- Judy cracks open the rock and it breaks into pieces.
- At the pet store, Judy adopts a Venus flytrap instead of a sloth.
- Stink finds a rock he thinks is a real moon rock.
- Stink bags the bits as “moon dust” and sells them for fifty cents each.

Most plants make their food from sunlight, but the Venus flytrap has a surprising extra habit: it catches and eats insects. It grows in wet, boggy ground where the soil is very poor, holding little of the nitrogen that plants need to grow. To make up for this, the flytrap traps bugs to get that missing nitrogen. Each leaf ends in two pink pads lined with tiny trigger hairs. When a fly touches two hairs, or the same hair twice, the trap snaps shut in under a second, one of the fastest movements in the whole plant world. The plant then slowly digests its meal over several days. But the flytrap cannot afford mistakes: snapping shut costs it energy, so it will not close for a stray raindrop. In the wild, this clever plant survives in only a small corner of North and South Carolina, which is why it is now carefully protected. A plant that hunts sounds like fiction, but it is growing in a real bog today.
This writing task is optional and is not part of your auto-graded score. The feedback below checks only the basics — length, spelling, and grammar — not whether your ideas are right or wrong. It is meant for classroom discussion and creative practice, so feel free to use your imagination!
Writing Task — Part 2 “The Perfect Pet”
If you could have any pet in the world — real or unusual, like Judy’s flytrap or a sloth — what would you choose and why? Describe your dream pet and how you would take care of it. Write at least 40 words.
No right or wrong — close the screen and tell someone nearby what happened in this part. Can’t find anyone? Tell yourself out loud. The moment you teach it, you truly understand it.

Part 2 Complete!
You finished Chapters 3–4 of Judy Moody.
Here are your auto-graded results:
The best last step is to teach it. In your own words, explain what happened — retell a favorite scene, teach a character’s big choice, or sum up the main idea for a parent, friend, or classmate. When you can teach it clearly, you truly own it.
Independent study guide by Garden Heights Academy. Not affiliated with or endorsed by Megan McDonald. Contains original analysis only; no text from the novel is reproduced.
