We put it in a tote inside at the science fair. Not sure how long it would hold up outside.

How long does it take to build?

Thank you for your question. It depends on the model and the building speed of the user. There are 6 different models that you can build with varying levels of difficulty. You can learn more here: http://www.thamesandkosmos.com/products/manuals/624811_hydropower_manual.pdf

Will a 6 yr old be able to use this?

With some oversight, yes. It is an assembly where there are instructions that need to be followed, with some explanations and other tips in written form, so it is helpful if the assembler can read, understand, and fully comprehend. Once assembled, there are gearing changes and other adaptations that can be done by a 6-year old after he/she has a basic understanding of the actual workings of the generator assembly. We used this set for a 7th grade science fair experiment, so the assembly was 100% done by my then 13-year old son. But I followed along out of curiosity and I think it could be assembled by a younger set of hands with adult supervision.

The led broke on this contraption, and attaching a new led doesn't seem to work. i tried a 3ohm bulb with no success. suggestions?

When mine broke, I thought it was the LED bulb, but it was actually the motor. It is possible that is what is wrong with yours.

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Science Toy Chemistry Science Toy Hydropower Science Kit

Product ID: 742861828

Details

Age Range (Description)
Kid
Brand
Thames &
Item Weight
0.01 Ounces
Item dimensions L x W x H
37.1 x 5.8 x
Size
37.08 x 29.21

💧12 hands-on hydropower experiments

📘48-page full-color manual

⚙️105 durable, easy-assemble pieces

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R2262

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Description

💡 Harness the power of water—turn curiosity into clean energy innovation!

STEP BY STEP SCIENCE - Follow a vibrant 48-page manual designed to guide you effortlessly through each experiment and scientific principle.
STEM LEARNING MADE FUN - Engage kids 8+ with hands-on activities that teach water pressure, surface tension, and gear ratios through real-world applications.
DIVE INTO HYDROPOWER MASTERY - Build and experiment with 12 dynamic water-powered models that bring renewable energy concepts to life.
NO BATTERIES ALL BRAINPOWER - 100% mechanical and water-powered—perfect for curious minds who want to see science in action without screens or plugs.
ECO INNOVATION AT YOUR FINGERTIPS - Explore how tidal, river, and wave energy generate electricity, inspiring the next generation of green engineers.

The Hydropower Science Kit is an educational, hands-on STEM toy featuring 12 experiments and 105 sturdy pieces that let users ages 8+ build working water-powered models. It includes a detailed 48-page full-color manual in English, teaching key concepts like water pressure, gear ratios, and renewable energy generation through tidal and river power. Battery-free and designed for immersive learning, this kit is perfect for young innovators eager to explore sustainable energy.

Specifications

ASIN	B001TGAYU0
Amazon Bestseller	#362,180 in Toys & Games ( See Top 100 in Toys & Games ) #542 in Chemistry Science Kits
Batteries Included	No
Batteries Required?	No
Customer Reviews	4.3 4.3 out of 5 stars (175)
Date First Available	February 24, 2012
Item model number	624811
Model Number	624811
Number of Pieces	105
Product Dimensions	37.08 x 5.84 x 29.21 cm; 0.28 g
Target Gender	Male

Reviews

K**N

We did these model experiments with our kids as we're building a full size version at our home this spring - the model even gave us some great ideas for our version!

11.01.2026

R**T

This kit is wonderful! I have purchased a couple of hydropower science kits, and this one is my favourite. Pieces are sturdy, and the manual is easy to follow. My Grade 2 daughter loved putting this kit together for a Water Fair at her school here on Salt Spring Island. I especially like that the larger water wheel example teaches gear ratio principles.

29.05.2015

A**R

Used this with groups in my class for a renewable energy week. The children are 6 and 7 so needed adult support to use it but end product was good. Led was broken before it got used which was annoying and the instruction booklet was deadly when it came to papercuts but apart from that it was a good purchase for the kids

4.04.2020

A**E

J’ai utilise ce jeux pour illustrer à des collégiens le concept d’une turbine hydroélectrique et ça a super bien marché! bonne qualité et super concept, je le recommande. Je l’ai reçu très rapidement.

22.02.2020

A**R

Kids love it, arrived in time for christmas

11.02.2020

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