Spider Life Cycle for Kids: FREE Complete Booklet + Worksheet
Inside: Download the complete 14-page Spider Life Cycle Interactive Booklet FREE by email, plus a separate free one-page color-and-label worksheet. Explore spider eggs, hatching, spiderlings, molting, and adult spiders with activities for Grades 1–4.
Unlike butterflies, young spiders look like smaller versions of adults. This lesson shows how they hatch, grow by molting, and eventually reproduce.
What happens inside a silk egg sac, and why do spiderlings shed their outer covering? The booklet answers these questions with simple explanations, illustrations, and activities.
Get the whole booklet: See what’s included and find the free email download below.
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What’s Inside the Complete FREE Spider Life Cycle Booklet?
Join my email list to receive the complete 14-page Spider Life Cycle Booklet—all teaching pages, activities, and assembly instructions.
Print, cut, stack, and staple the tabbed pages. Children read about each stage, then color, label, or answer a short question.
- Five illustrated teaching pages: Eggs, hatching, spiderling, juvenile, and adult.
- Activities: Color, label, find a shed exoskeleton, and answer science questions.
- Review pages: Put the stages in order, draw a spider, and record new facts.
- Grades 3–4 challenges: Compare stages and explain molting with scientific vocabulary.
- Assembly guide: Simple directions for cutting, stacking, and stapling the booklet.
Included: 14 PDF pages in total, including the cover, instructions, teaching pages, and review activities.
Bonus: FREE One-Page Spider Life Cycle Color & Label Worksheet
For a quick activity, download the free one-page Color & Label worksheet from my Free Homeschool Printables Library. No email signup is required for this page.
What’s Inside the One-Page Worksheet?
- One printer-friendly PDF page with a black-and-white life cycle diagram.
- Five pictures to color and label: eggs, hatching, spiderling, juvenile, and adult.
- A word bank to support developing readers and writers.
- A short thinking question asking why growing spiders molt.
You’ll need: A printer and coloring pencils. Help younger children read the labels.
The Spider Life Cycle Explained for Kids
Spiders are arachnids, not insects. They have eight legs and two main body regions, often called the cephalothorax and abdomen. Unlike a butterfly, a spider does not pass through a caterpillar or pupal stage. It begins as an egg, hatches as a very small spider, and grows by molting—shedding its old outer covering.
For the worksheet and interactive booklet, I’ve divided the life cycle of spiders into five teaching steps: eggs, hatching, spiderling, juvenile, and adult. This is a practical way for elementary students to follow the changes. It is worth explaining that these are not five strictly separate biological stages: hatching is an event, while “spiderling” and “juvenile” both describe immature spiders.
1. Eggs — Inside the Silk Egg Sac
A female spider lays spider eggs and usually encloses them in spider silk. The silk forms an egg sac, which helps protect the developing eggs from damage, drying out, and some predators. Egg sacs vary widely between spider species. Some are round, some are flattened, and others are hidden under leaves, bark, or in sheltered places.
Not every mother spider behaves the same way. Some guard their egg sacs. Wolf spiders, for example, carry their egg sacs attached near the rear of their bodies. Other spiders leave the sacs in protected locations.
Ask your child: Is the egg sac the same thing as an egg? The sac is the protective silk covering; the eggs are inside it.
2. Hatching — Tiny Spiders Leave Their Eggs
As the young spiders develop inside their eggs, they eventually hatch. Hatching means leaving the individual egg, not necessarily emerging from the entire silk egg sac. In many species, the newly hatched spiderlings remain inside the sac for a period of time. Some molt there before they leave.
This difference is easy to miss in a simple picture, so it’s something I would point out before children label the life cycle. They are learning two different events: hatching from an egg and leaving an egg sac.
3. Spiderling — The Young Spider Explores
A newly hatched young spider is called a spiderling. These baby spiders already have eight legs and the same basic body plan as adult spiders, although they are smaller and still need to grow. Once it is ready to leave the egg sac, it must find space and, eventually, food.
Some spiderlings move away by walking. Others release very fine silk threads that are lifted by moving air. This behavior is called ballooning, and it can carry tiny spiders to new places. Not every spider species travels this way.
A useful question for children is: How can silk help a spider even when it is not catching an insect? Egg sacs, safety lines, and dispersal are all examples.
4. Juvenile Spider — Growing Through Molting
A spider has an outer skeleton called an exoskeleton. Much of this covering is too firm to expand enough as the spider grows. To get bigger, the spider forms a new covering underneath the old one and then sheds the old exoskeleton. We call this process molting (or moulting).
Immediately after a molt, the new covering is soft. The spider needs time for it to expand and harden. A growing spider usually molts several times before reaching adulthood; the number varies by species.
I think this is one of the most valuable parts of the life cycle to teach because the empty exoskeleton gives children visible evidence of how spiders grow. A shed exoskeleton is not another spider, and it is not the spider’s dead body.
5. Adult Spider — A New Generation Begins
After enough growth and molts, a spider reaches the adult stage. Adult spiders are mature enough to reproduce. A female can then lay eggs, usually enclosing them in a new silk egg sac. The process starts again with the next generation.
How long this takes depends on the species and environmental conditions, including temperature and food availability. Different spider species develop at different rates. There is no single timeline that applies to all spiders.
How to Use the Free Spider Life Cycle Printables for Grades 1–4
Before handing over the worksheet, I would read through the five steps with the child and point to the matching pictures. Then I’d cover the labels and see how much they can remember. The activity works best when the coloring is connected to an explanation rather than treated as a separate task.
For Grades 1–2, help children put the words in order and let them explain molting aloud. A child who can tell you that a growing spider sheds its old covering has understood the main idea, even if the written answer is short.
For Grades 3–4, ask for a little more reasoning. Why is hatching different from leaving the egg sac? What is similar about a spiderling and an adult spider? Could a spider keep growing without molting? Encourage two or three sentences using egg sac, spiderling, and exoskeleton.
For more sequencing practice, try the honey bee life cycle, pumpkin life cycle, or plant sequencing activities.
Helpful Resources for a Spider Nature Study
The Australian Museum’s guide to egg sacs, spiderlings, and dispersal has useful real-life photographs and explanations of what happens before and after young spiders leave the sac.
The Natural History Museum’s house spider page is a helpful reference for spider growth and familiar spiders found around buildings.
For more animal and outdoor science, explore our owl nature study or try an outdoor scavenger hunt. For interactive anatomy models, you might also like the Plant Cell Anatomy activities and the Digestive System Foldable.
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Other Activities
Want to take the lesson beyond the printables? Try one of these easy spider activities.
Look for Silk and Egg Sacs
Take a short walk in a garden, park, or other outdoor area. Look for webs, silk lines between plants, or a silk structure tucked under a leaf. Have children sketch what they can see and describe where they found it. Don’t touch or open an egg sac: disturbing it could damage the eggs or young spiders.
Make a Spider Observation Page
Give your child a piece of paper and ask them to record the date, location, type of surface, and what the spider was doing. Was it sitting on a web, moving over the ground, or hiding on a plant? Children can draw the spider and count the visible legs. If a spider is too far away to see clearly, they can record what they can observe instead of guessing.
Compare Two Life Cycles
Place the spider life cycle next to the Honey Bee Life Cycle printable. Ask children to find one similarity and two differences. Both animals begin as eggs, but honey bees have a larval and pupal stage. Spiders develop into larger, more mature spiders through repeated molts.
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