4M Toysmith, Green Science Windmill Generator Kit, DIY Science Kit With LED Lights, For Boys & Girls Ages 8+ (Packaging May Vary)

Arrived when expected. Easy to assemble. Worked as described. Reasonable price.

The media could not be loaded. We have tested this product with both the suggested dirty water and water colored with food coloring and it worked on both cases. It should be noted however that the filtering materials are vert small quantities, so using a big amount of water dirt or colors will make it less efficient faster. I would suggest to do the test with small amounts, I think 50 ml is more the enough to demonstrate the principle. For the dyed water I ended up using only 20 ml.My daughter used it for her science project and it was very fun for her to do and she assemble it herself with my guidance to explain the instructions. She is first grade so I do not think it is very challenging bu fun and educating to observe.I added a video of the assembly and the final product and function. I would suggest to use a heavy glass container as a collector as they suggested because it was too flimsy when my daughter used a plastic cup and needed to add a support cup as seen in the end of the video.

I got this for my son who is in the 2nd grade for Christmas. He loves science experiments! It was a BIG hit! He was super excited about it upon unwrapping it. So the surprise/excitement factor was there. When it came down to doing the actual experiment, the instructions were simple and easy to follow. Most everything you need is included & items that are not included are items that most people have on hand at home or in their kitchen(ie: cooking oil, dirt, water). Not only was the water purification experiment enjoyable for my 2nd grader but my kindergartener enjoyed it as well. So, it was a definite "crowd pleaser"(even for the adults involved). Also, there is more than one experiment included. So, you get more "bang for your buck" from that aspect while also getting another activity/experiment to do for another day. Although this was given as a gift, it would also work well for any homeschool, private or public school science curriculum. It is just an all around great buy!

This was a lifesaver for an overdue science project my Son needed to get done for his 4th grade class. The instructions were easy to follow, the science was clear to understand and explain in his report, and he and his Dad had fun building it and testing it out. It worked just as promised and the light is clear to see. It got here fast and was very afforable... just an all around great product! Thank you!

It's a cool idea, but definitely quite messy and kids couldn't stomach all the wait for the water drip. You also have to supply your own dirt to add to water, which due to the different nature of dirt is likely to cause different experiences. You also can't drink the water, so it's ultimately a subpar filter with little cool factor for the kids.

Ever see a kid get a present and FREAK? Then he doesn't put it down at all - he walks around with the present in his hand throughout the whole party - gripped in his hand - just because he loves the present sooo much?That is what I experienced when I gave this present to my nephew on Christmas Eve. The kid didn't put the box down. He thought it was the best thing, he passed over the video games and zeroed in on this present and it was the best present in the world. I gave 4M presents to all the kids and it was a hit.Getting feedback from Dad on later install - he said it was fun to put together, easy for the 9 year old boy to figure out, but challenging enough for fun - and it was SUPER FAST when the water was added. Works for me.

The media could not be loaded. Took my daughter to the coast recently and drove past the windmill farms. She was fascinated and full of questions so we decided to look into a project. Glad we went with this one. Easy to assemble just wish it was a little better quality. Took quite a bit to get the screws tightened.

Good kit for science projects and renewable energy education.