EISCO 6pc Specific Heat Metal Cylinders Set - Copper, Lead, Brass, Zinc, Iron & Aluminum - Includes Wooden Storage Block - for Specific Heat, Specific Gravity & Density Experimentation

This would be a great kit, but the cylinders are not labeled, so be prepared to do a ton of work and math to figure out which is which. The seller was helpful with an answer to my question, telling me which metal was which in terms of matching to the photo. However, I was sent a used kit (which was also missing the instruction leaflet), so they had not been put back in order. DO NOT TAKE THE CYLINDERS OUT THE CONTAINER UNTIL YOU'VE IDENTIFIED THEM ACCORDING TO THE PHOTO ON AMAZON AND THE SELLER'S ANSWER BELOW! And hope that you've been sent a kit that hadn't already been opened.Because my son needed these for a school project, we had to do a ton of work to check density of the metals and be sure that he had the correct cylinders for his experiment. In particular, it is difficult to tell the difference between the iron and zinc. Both are supposed to be lustrous, but the zinc oxidized quickly and looked the same. After doing the math, the density of the zinc is actually 6% less than it should be - although for the purpose of a high school experiment, that's probably OK. But, thank goodness for having a parent who is a scientist who could figure all this out before the kiddo did his experiment. Without that input, it would have been hopeless.Amazon couldn't sort out my order and get the leaflet to me in time, so promised a ten dollar credit, but as yet, that hasn't appeared in my account. It's a shame, as this kit should be perfect for use in high school experiments. A simple mark/engraving on the bottom of each cylinder would solve the problem instantly.

Too small. Also, some pieces had rust on them. Seems very old. Not so impressive to have them on table. Should be little twice the big size of each piece what is now

There's nothing wrong with the product, but they should have indicated which metal was which. I had to use the mass and density of the metals that I could identify to determine the volume of the samples. I'm assuming they are all the same. From there I calculated the density to identify which one was zinc and iron.