What Is The Difference Between Sidewalk Chalk And Blackboard Chalk?
What Is The Difference Between Sidewalk Chalk And Blackboard Chalk? Sidewalk chalk is made from the mineral gypsum. Sidewalk chalk is used outdoors and washes away with water. Chalkboard chalk is used in instructional settings and removed with a special eraser. What kind of chalk do you use for chalkboard art? Regular Chalk – If