Over the past month or so, I’ve been on a tear to discover all I can about citric acid. What I’ve learned, tested and tried is nothing short of amazing. So get ready as I lay out the case for adding ...

Citric acid is an important natural compound that has been known since the late 18th century. The pioneering Swedish–German chemist Carl Wilhelm Scheele isolated it from lemon juice in 1784. It has ...

New research reveals why different organic acids produce unique sour tastes and why some people enjoy intense puckering sensations.

While we may think of wood as being earthy and natural, wooden materials such as plywood and particleboard typically contain formaldehyde-based adhesives that give off toxic fumes. Such is not the ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...