Some investigations are quick — literally. The Water Drop Race Challenge takes less than a minute per trial, but the thinking it provokes runs much deeper. This activity asks a deceptively simple question:Which surface lets a droplet move the fastes...

Some investigations don’t need chemicals or explosions. Sometimes, all it takes is a smudge on glass and a careful eye. The CSI Fingerprint Challenge Kit invites learners to step into the role of a forensic scientist — lifting prints, spotting patte...

A handful of craft sticks. A rubber band. One marshmallow. From these simple materials, an entire scientific investigation can unfold. The Marshmallow Catapult STEM Challenge invites learners to explore how stored energy and design choices affect mo...

Not all discoveries begin with explosions or fizz. Some require silence, stillness, and patience. The Tardigrade Moss Hunt offers a rare invitation: slow down, look closely, and find what most people miss. Tardigrades — often called water bears — ar...

How fast something dissolves might seem like a simple question — until you try to test it. The Dissolving Race Challenge invites learners to investigate how different materials behave when added to water. They observe. They time. They repeat. And mo...

Testing Ideas Through the Egg Drop STEM Challenge Drop an egg from a height and something surprising happens — not just to the egg, but to the way learners think. The Egg Drop Challenge is a focused investigation into protection, impact, and thought...

What happens when acids and alkalis mix? What if you could safely taste the result? The Sherbet Fizz Challenge invites learners to observe science in action — not through a textbook, but through their senses. With just a few ingredients, they spark ...

Build Resilience, Not Just Bridges No fancy kits. Just paper, tape, and a curious mind. Ever seen a child grin when something fails? With this STEM challenge, they will. What It Is A simple paper bridge activity that helps learners think like an eng...

Hands-on science Learners can see, test, and talk about. Why This Series Exists So many science resources focus on reading about experiments — not doing them. The Science Investigation Challenge Series is designed to change that. Each challenge in t...

Make the Invisible Visible 🧬 What Is It? The Banana DNA Extraction Challenge takes the abstract world of cells and genetics and puts it right in front of learners — where they can see, touch, and describe DNA. They’ll:Break down the cells in a banan...