Materials List: Load It Up!

Each group needs:

  • Pier (Column) Design Worksheet
  • calculator
  • measuring stick or ruler with 1/16-in (1-mm) marks
  • weights for measuring, totaling at least 7 lbs (3 kg), such as weights, books or a coffee can filled with coins or rocks
  • (optional) sculpting tool, such as a metal spoon or scissors to cut clay, foam and marshmallows

Photo shows green high-density (2" x 15" x 17") foam in a clear plastic wrapper.
Copyright © 2007 Denise W. Carlson, ITL Program, University of Colorado Boulder

For the entire class to share:

  • modeling clay pieces, ~ 2 in x 2 in x 3 in tall (~5 cm x 5 cm x 7.5 cm)
  • 1 bag large-sized marshmallows
  • high-density foam, about 1 ft2 (9 dm2) by 1-2-inches (2.5-5-cm) thick; available at fabric and craft stores
  • scale, to weigh books
  • scrap paper and tape, to note book weights on each book
  • tape, to hold marshmallows together
  • (optional) wax paper or plastic wrap, to keep clay moist before use
  • (optional) toothpicks (if students redesign using "reinforced" materials)