4M Weather Station Kit - Climate Change, Global Warming, Lab - STEM Toys Educational Gift for Kids & Teens, Girls & Boys 8.5 x 4.75 inches

This kit works, but requires you to have extra supplies and tools not included. We did not have a 2L bottle, so this still has no stand. The screws are very tiny and hard to screw in, so I had to put them all in as my 10 yo did not have enough strength to get them all the way screwed in. A screwdriver is not included and requires a tiny screwdriver like an eyeglass screwdriver or one that will open tiny battery areas. Also, the instructions could be easier to read and use if they would label the parts with a number and a name the instructions would be easier overall. It would also help kids learn what these parts are. The wind turbine does turn on a light, we tested it with a fan and will test it outside once we get a stand, aka a 2L bottle filled with sand as we live in a pretty breezy to downright windy area. Thanks for reading this review and I do hope it was helpful!

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!

It's a bunch of flimsy plastic pieces, and the experiments don't work that well.The cloud maker barely works at all (we tried quite a few times, and it was almost noticeable twice).The water cycle thing had the wrong piece for the base so it was very hard to put together, and didn't have a hole in the mountain at all (which is referenced in the directions), so I ended up cutting one in the wrong place because there was no indication of where it was supposed to have been, and then when we followed all the directions it kept flipping over in the water. I finally filled the base with stones to weight it down, and even then the water cycle really wasn't apparent.So it definitely did not feel like value for money. Disappointing.

I was looking for projects for my kids to pass the time this summer, I thought these would be the perfect thing. My issue with this product is that it’s missing a lot of the items needed to complete the project, which is big bummer.

I received this today in our RND Lab and assembled it right away. Had 2 issues that once corrected, the unit works just fine.1st, they provide a detailed instruction sheet and it is simple to follow. They "clearly" show the RED wire at the bottom right rear and the BLACK on the other terminal. After assembly the light would not light up. As an engineer, I immediately started trouble shooting and found that if it was spun backwards the LED would light up. Of course being thorough (they recommend twisting the wires which I just can't live with), had to "de-solder" and then re solder the wires to the opposite terminals. Using our shop air compressor system and 40 PSI the LED lit very brightly.2nd, the bottle cap adapter that they recommend adding oil to is molded with too high of a tolerance. To fix this problem, I sanded the very top edge until it was smooth (there is a very definite ridge ring that can be felt around it that is unnecessary). After that it easily spun around as it should.I've added a picture showing the 2 steps above.So, in the end, definitely an excellent product for learning and and the price is very reasonable. If it hadn't been for the extra work it would have been given it all 5 stars.

9 year nephew loved learning that energy doesn't always come from a battery

This item was used for my son's science school project when he was in 3rd grade. It was easy to assemble and he wrote plenty of footnotes. He received an A+. I was told that if the project was not returned back to the child then it meant that it went up to the next step. We never got it back. He graduated as #1 student in the school district and valedictorian. As of now, we never found out how far up his project went.

My 8yr old son and I assembled this robot today, but it wouldn't go. The wheels would turn a little bit, then stop. After investigating, I discovered the axle gear and right-rear wheel were getting stuck. I used an exacto knife to shave plastic on the chassis beside the axle gear and rear wheel until it would turn freely. The motor has decent RPM, but absolutely no torque, so any tiny little hinderance, like a partial grain of salt in the gears, stops it.All-in-all, once I figured out the problem, this is a neat-o little robot and my son loves it.We had fun building it together, which was the best part for me.If not for the part where I had to trim the plastic on the chassis, this would definitely be a 5 star rating.Finally, I really appreciate the "how it works" and "fun facts" portions of the instruction sheet. None of the other STEM kits I got my son for xmas had those.

Ok so the finished robot is TINY, see photo above. About two inches tall.The science is very cool, we enjoyed building the battery. I had to use google to look up how a magnesium air battery works as the explanation on the leaflet said little about that.My 9 year old was unable to do most of the work: it required adult strength to force the pieces to clip together (and work out the confusing leaflet instructions). So as a solo project to amuse a child it failed dismally. As an interesting performance for an adult to show a child, it did well.Would expect to pay £7-15 for this type of product.

I couldn't believe how light the box was when it arrived, it was seriously like it was empty. It could have come in a matchbox. We got it made and it ran once and that was it. What a terrible rip off. Almost fifteen pounds … and for nothing. It really doesn't deserve even one star

Used this to demonstrate wind power for Cubs/Scouts. It worked perfectly as shipped, but I actually soldered the electrical connections and assembled the generator block to keep it simple for the younger ones.

It was ok, but you need tools to build it and not just the ones you have around

Easy to assemble and does generate a little but needs to loosen up to get better.