Science Project-Invisible Ink

This is a science project book, I will take you deep into the projects of physics, chemistry, biology and explain why the thing which 'happens', happens! There will be a chapter containing science facts between every pair of science project chapters. Some projects require parental guidance, I will mark them as PG. Children under the age of 8 should not try any of these projects without parental guidance. We will have fun together and learn tons of things if you are willing, so, are you ready for it?