Materials List: Clay Boats

  • non-hardening modeling clay, 1/2 stick (~2 ounces or 50-60 grams) per student, plus some extra in case any get too wet to mold
  • tub of water, at least 6 inches deep, per four or five students
  • 100+ large washers to use as weight for boat testing, such as 1.5-inch fender washers; available at hardware stores
  • paper towels (dozens)
  • roll waxed paper
  • masking or transparent tape