Teaching the excretory system can sometimes feel a bit abstract, especially for younger students. That’s why I love using this 3D craft activity, it turns a complex process into something students can build, understand, and actually enjoy.
This printable resource helps students learn how the body filters out waste and keeps everything running smoothly. As they color, cut, and assemble each piece, they follow the journey of how the kidneys, ureters, bladder, and urethra work together to clean the blood and remove waste. The result is a vertical, layered model they can hang up and refer to throughout the unit.
Do you want this resource?
You can get it, along with many other materials, in my Teachers Pay Teachers store.
It’s a creative way to bring science off the page and into their hands, especially for visual and kinesthetic learners who thrive on interactive tasks.
What’s included in the resource:
- Four illustrated pages, each showing a different part of the excretory system
- Step-by-step photo instructions for easy assembly
- Simple, student-friendly directions
- A finished model that can be displayed with string in the classroom
I’ve used this as part of a human body unit and also kept it on hand for early finishers who need something meaningful but independent. It also works great in homeschool settings where hands-on science activities are especially valuable.
Whether you’re introducing the topic for the first time or reviewing how the body gets rid of waste, this activity helps make it real. Plus, students feel proud seeing their work displayed—especially when they can explain each part and how it functions.
If you’re looking for a low-prep, high-impact way to teach the excretory system, this might be just what your science lesson needs.
