ButterflyEdufields 70+ STEM Projects for Kids Ages 8-12 | DIY Science Experiments & STEM Educational Engineering Toys | Birthday Gift for 8 9 10 11 12 Year Old Boys – Best STEM Tinkering Toys

Nice kit for the price, but the battery pack wires are fragile, and once one of them rips out, the entire kit becomes useless.UPDATE: The seller got in touch with me and sent over two replacement packs, free of charge, so I'm updating the review to 5 stars to reflect the fact that they stood behind their product.

I bought this as part of a birthday gift for my 9 year old daughter, who loves science. At the beginning her dad helped her with the hovercraft. She doesn’t want to wait for the next project. She used the motor to create a few more projects by herself. I’m happy when she shows me her independent projects. Her favorite one is using the little motor to draw on the round cards. Wish they come with more cards. But I cut more for her so she can invite friends to try. At the beginning when you first open the kit, it smells like chemical for a few minutes. So I took everything in the garage. Other than that, it’s really a smart and simple kit that Elementory kids can do it themselves.

Motor machines has been a christmas hit in2023! Greta engineering skills to practice over and over again.

I gave this to my five year old and she loved it. Our only issues were the fact that the kit was missing the larger paper discs for the spin art and the mini vacuum cleaner cup looks to be a different size than what is pictured in the instructions. When we made the magic mixer with the cup the foam thermocol balls jammed immediately since there wasn't enough room in the cup.

Terrible! Doesn’t work! First issue was the instructions just have pictures and don’t truly label the pieces - not a huge deal, they’re all simple enough projects.First we tried the balloon boat. The pieces were slightly different than the pieces in the pictures but we figured it out - the directions talk about angling the straw to change the direction of the boat - but the hole in the boat is straight up and down, our straw could not be angled no matter how much we tried, and our boat went nowhere!Then we tried the motorized boat. Small issue, the cutouts are slightly different than pictured, as is the design of the motor. Now the big issue - We got it all assembled and my daughter was having a hard time attaching the propeller straw to the motor. I figured it just needed to be shoved on there tight, so I tried and tried and no matter what, it falls off. I tried electrical tape, it falls off. Looking through the instructions, this setup (the straw + motor) is used in most of the projects! So these components not fitting together is a huge deal. I hot glued them and it looks like it might hold for a little while under very gentle pressure, but really this is ridiculous. Waste of money, disappointed kids, and discouraged mom. Don’t waste your time and money on this poorly designed kit.

Good quality.

The media could not be loaded.  Easy to use and lots of fun!

Several of the projects do not work because the motor is too weak or the parts too flimsy.Missing several accessories so we couldn’t do all the builds.The spin art works great as long as you press lightly. But the paper is weird. The lightest touch and the ink disappears.The instructions are doable. Better than China, but below Germany. 😂However, my biggest problem is the print. I think the font is 8, and the print color is medium gray on light gray. I know a 10 year old will see it fine, but my granddaughter is 7, so I’m helping/reading.

Cumplen con lo prometido, los experimentos y los elementos que incluyen son seguros, solo si acaso no recomiendo donde se propone usar con agua y recomendaria proouesieran experimentos con los imanes que incluyen.

This is amazing, so easy to use following the step by step instructions which come with videos. We have only done a few of them but they are great fun and even provide information about how the experiments work

Good quality and right selection of projects.Kids likes it. Go for it.

My daughter loved making these cars.. it gave her a sense of accomplishment as she did all by her own , and it was working.. racing car and road roller car were here favourite.. highly recommended if you want your child to be an innovator..

Fun Chemistry Kit for children. My son enjoyed the science experiments.