Hello there, it is my first day on these forums today.
I am planning a science fair project to do, (a real science lab, with variables and data collection, not just a "demonstration"). I am basically measuring the cold produced by different endothermic reactions, such as adding salt on ice for example. It would be nice if the forum commenters could list a few common endothermic reactions that I would be able to produce using common or household materials, or chemicals commonly avalable inside a labortory. Please note that I am merely 13 years old, so please list chemicals by their names rather then symbols. Thank you very much, and if this is in the wrong section, i will apologise in advance. This may seem a bit like homework help, but i thought it belongs more in the chemistry section.