$25 to $50

If you're raising a future Sherlock Holmes, your young detective needs all the tools of the trade. Help them crack the case on any mystery with thi...

Set up an impressive security perimeter with this Spy Labs tripwire alarm system. Press a button to activate LED beams across two transmitters, the...

If you're raising a future James Bond, your young secret agent needs the high-tech help of this 2-in-1 super pack that includes night vision goggle...

Curious kids experiment with strength and stability, building 20 models that demonstrate mechanical physics or structural engineering principles. T...

Embark on an exciting treasure hunt with the Thames & Kosmos Metal Detector! This intuitive device uncovers buried metal treasures—gold, silver...

Explore the microscopic world with this Thames & Kosmos student microscope. Magnify specimens up to 600x with three objective lenses and view p...

Turn any room into a planetarium for astronomers in training! Give them sweet dreams of travel through space: this projector displays either a rota...

Transform rough stones into stunning polished gems with the Thames & Kosmos Rock Tumbler. This user-friendly machine lets young geologists disc...

Buckle up, gearheads! Ready to become a backyard engineer? Snap together your own V8 race car and watch the magic happen—literally. Build a fully f...

Build and experiment with a working wind turbine. Adjust the rotor blades to optimize performance, light up an LED, and charge a model car with sto...

The power of wind makes them go - and you'll have fun building 6 awesome bots that move without any batteries at all. Easy, snap-together assembly ...