You get the basics that you need to perform the experiments. As many have previously commented you will need extra items to do the majority of the experiments though some such as sugar,salt a lemon et.c are easily available, some less so. Although you do get many chemicals to perform some experiments, you dont get too much eg Copper Sulphate, so you will need to source more if for example you wish to grown crystals. I am having to locate these through a lab supplier. It may not be so easy for others to acquire these. My 7 year old & I have had good fun with this and we have only done the 1st few of the 100 experiments.