High Seas Adventure!

Lesson Abstract: In this lesson, students will expand their knowledge of unit measurements and volume to learn about density and buoyancy. They will connect ideas of density by measuring the volume of water displaced to find the buoyancy of different objects made with varying material components. Ideas will then be applied to creating buoyant vessels capable of handling a high amount of weight without sinking.

Objective: Students will learn to use volume and its relationship with mass, density, and buoyancy to show other aspects of engineering in the world today, demonstrating real life applications of measurement and optimization concepts.

Materials: The instructor will need:

  • Scissors
  • Rulers
  • Many marbles (No less than 150)
  • Scotch and Duct Tape
  • Aluminum Foil
  • Cardboard
  • Foam
  • Plastic, paper, and/or foam cups
  • Any other materials wanted for the HydroCost activity (such as foam/paper bowls, pins, additional tape, etc.)
  • Graduated beakers (1 100mL beaker, 1 250mL beaker for each team)
  • Density material set (essentially a set of small materials of varying density)
  • Pen or Pencil
  • Paper towels
  • Trash can
  • Large container of water (eg: fish tank)
  • Computers with Java Installed
  • Web browser connection to the Density Applet
  • Web browser connection to the HydroCost Applet (High School Version)
  • Web browser connection to the HydroCost Applet (Middle School Version)


To the Web Lesson!