I am excited to share this lesson! I have used this lesson with pre-k through grade 2 and kids love it!! The intent of this lesson is to teach students about colors but from a different perspective! In the lesson, students discover that black is not really black but instead is made of different colors! They then design their own experiment to test to see if all pens do the same thing as black! Your students will love this lesson! Easy materials-coffee filter and water-soluble makers!