Chemical Reactions!: With 25 Science Projects for Kids by Berk Koch, When we think of chemistry, many times we think it is something that happens in a laboratory with people wearing white coats.when actually it happens all around us, even in the most ordinary places! Chemical reactions are all around us. Did you eat toast this morning? That toast was a result of a chemical reaction. Even in our own bodies, we break down the food we eat into usable nutrients. These 25 science projects will teach 7 to 10 year-olds about what happens when different molecules and atoms come in contact with each other. 96 pages.