I incorporate some science concepts into my reading readiness lessons and give students some tactile experiences before having them practice printing letters with pencils. They dip their finger in water and practice forming the letter 'Ee' on individual chalkboards. As the water dries, we discuss what happened to it. They are introduced to the word and the meaning of evaporation. We review this concept when we make 'Disappearing Dd's' and 'Invisible Ii's'.