5Pcs Metal Block Set-Brass, Copper,Iron,Steel & Aluminum for Density Investigation,Specific Gravity,Collectible,Specific Heat Experiment

Great for learning

I purchased these for my son’s science fair project. They arrived quickly and looked exactly as they did in the picture. These were used to test how pairing different metals in an electrolyte solution generates different amounts of electricity. Since the amount of electricity generated by pairing different metals aligned with what is known about the properties of these metals, the product seems to be a reliable product to use for science experiments. I should also mention that my son thought that the metal pieces look cool and all of my kids were immediately interested in what we would do with the metal when we opened the package. I plan on purchasing more products from this seller for future science fair projects.

I am absolutely thrilled on these items

They are pretty small. Plus I can't figure out why the one marked "steel" isn't magnetic?

I love these

My kids used these for a science project. We picked this particular project because it looked like the bars had labels. Some other sellers had similar products but the bars did not appear to be labeled. These did come labeled as expected which made it easier for the kids.

Overall, these are great. I used them to show my class that different materials have different density. The only thing I would have liked is the material name to be etched into the cylinder in case the labels come off.

My son loves these and shows them off to all his little friends. We told him they were different things to be more consistent with Minecraft.