Measure 6 cups of all-purpose flour into a large mixing bowl.
Grate a stick of sidewalk chalk directly into the flour.
Slowly drizzle the 1 cup of oil over the flour and stir.
Use a pastry cutter or knead with hands until the dough feels like soft, powdery sand.
Transfer the moon sand to a sensory bin and add sensory tools and toys. Let them play!