I bought these for my two little home-educated relatives. At least, that was what I told their parents - it was the only way they would agree to go halves with me. Truth be told, these were bought for ME. Oh, I share them... when I have to. But they're mine.
These are visually quite breathtaking, certainly in the amount of data each card manages to incorporate about its respective element. On the front, a photograph of the element or, in the case of some of the more elusive substances, some sort of picture appertaining to it. On the back, pretty much each element's complete life story. Everything you ever wanted to know (and quite possibly a fair bit you didn't) about the entire periodic table, presented in an extremely informative way. What is also brilliant is the way each card interacts with its colleagues, making it easy to compare the elements. This is particularly handy when comparing things in the same groups.
Actually, the fact that I really don't want to share these cards actually makes them much more attractive to my two little friends. The more I cry and beg for their safe return, the more they seem to want to play with them. Strange.
Should you ever struggle for a reason to have this card deck in your home there is even one card which has some salutary hints for you. Arranging the elements in order of melting point, for instance... or any number of variations on 'Go Fish'. Or, the most entertaining suggestion of the lot, using the chemical symbols as some kind of 'phonetic' alphabet. That's a good one to use with children although, of course, adults generally have a wider vocabulary. Now then, where was I? Phosphorus, iodine, sulphur... .