Design a Water Filter Builder Kit

Engineer your own working water filter.

This isn’t just a science activity — it’s a hands-on design challenge. Kids build a real filtration system, test how it performs, and refine their design to improve results.

By layering natural materials and watching water transform as it flows through each stage, they discover how simple systems can solve complex problems.

What They’ll Do

• Build a working water filter
• Layer and test real filtration materials
• Observe how design affects results
• Improve their system through experimentation

What They’ll Learn

• How filtration works in the real world
• Cause and effect through hands-on testing
• Core engineering thinking: build → test → improve

What’s Included

• Clear filter container (child-sized)
• Coffee filters
• Sand, charcoal, gravel, and cotton
• Pre-measured kraft envelopes
• Rubber bands and simple setup tools
• Illustrated build guide + challenge prompts

Why Parents Love It

• Real engineering, not just a craft
• Immediate, visible results
• Encourages curiosity and problem-solving
• Designed for meaningful, hands-on learning

Ages

Best for ages 6–12

Good to Know

• A little mess is part of the experience
• Materials are safe but not for consumption
• Can be rebuilt and improved again and again

Part of the Desert Water Lab

This kit is also included in the Desert Water Lab Box, where kids explore multiple ways water can move, change, and be transformed — just like in the journey through the desert.