United Scientific™ Density Cube Set, 10 Materials Physics Blocks, 1 Inch | Steel aluminum copper brass wood, Reference chart included, Wooden storage box, Hands-on experiments, Fits standard balances

As an 8th Grade Science teacher, I have purchased several of these kits to help teach measurement and density’s the containers are fantastic and easy to store. I wish there was a way to purchase replacement blocks as a few of mine went missing and replacing the whole kit for one missing block is not cost effective.

This is a nice little set of cubes to use when learning about density. It came in a blue plastic box, with individual compartments for each cube. There is a label that shows what each cube is made of. The cubes seem to be of nice quality. A good addition to our homeschool.

I hate when people don’t send what they advertise. These do not come in a nice wood box with good labels. They come in a cheap plastic box with cheap labels. The materials were not accurate either. It was not real rosewood. It literally was painted to appear as such. Be honest about what you sell.

Very cool density set. All of my cubes were in good shape. I have no complaints and it's hard to extol any particular virtues here, since it is what it is—a collection of 1 in. cubes of different materials. The spec sheet it came with was interesting, and the whole thing will make a good educational piece.

The cubes are well made and useful when teaching density and volume. The container itself is a little flimsy around the latches and hinges since it's a thin plastic. The density of the cubes is within the margin of error for the material. The manual that comes with it seems to be a photo copy of a much older manual.

These cubes are sufficient for my Science Olympiad group to use. However, the prior reviewer was spot on. The cubes are somewhat scratched and are not labeled themselves ( there is a key on the top of the box but if your students mix them up, they won't know the difference if you don't check them). The tray in which the cubes are situated is cheap and flimsy and probably will not last long. The box is also cheap and flimsy. The latch is easily broken and I believe I will also have to super glue or gorilla glue the box together in a short period of time. I guess the blocks will fulfill their purpose but if you're looking for something secure and study in which to store them, keep looking.

These are perfect for teaching mass, volume and density. Thank you.

All cubes are good when arrived