Teach cellular respiration, photosynthesis, the law of conservation of matter, reactants and products with this hands on and engaging lab! This lab has been a hit with my students for years and is a perfect way to make these complex science concepts lots more fun for students and easier for you!Check out the PREVIEW for an idea of everything included in this engaging lesson!I created this lesson for my 8th grade students, but other teachers have used this lesson with more advanced lower grades,