Learn about reactions between solids, liquids, and gases. Discover the colourful effects of acids and bases. Perform astonishing "magic" tricks for your friends. Make fizzy and foamy reactions. Write messages with invisible ink. Investigate metals and salts in electrochemical experiments with a 9-volt battery (not included). Learn for yourself how chemistry goes far beyond textbooks and laboratories to explain occurrences that happen around us every day. The Chemistry 500 48-page, full-colour experiment manual gives simple instructions for setting up and performing each experiment, and then clear explanations of what happened and why. This kit is ideal for children who are interested in chemistry but who are not yet ready for a more advanced chemistry set. It serves as an excellent introduction to our other chemistry sets.