Table of Contents Module 2 MODULE 2: BUOYANCY


How does this boat float? Learn Sailing Right! Beginner Chapters 2, 3, 4, & 7, Intermediate Chapters 2, 4, & 5


Subject Areas


Engineering, Mathematics, Science, and Technology Summary


Students investigate the concepts of buoyancy, density, and water displacement.


Duration Lesson Time: Part I: 40 minutes Part II: 40 minutes


Skills Predict, Test, Explain


Sailing Skills


Know your boat, Directional Terms, When the Boat is in the Water, Proper Position in the Boat, Balance: How Sails and Foils Work Together, Weather Helm, Lee Helm


Vocabulary


Archimedes Principle, Gravity, Weight, Mass, Displacement, Buoyancy, Density, Center of Gravity, Weather Helm, Lee Helm, Center of Lateral Resistance, Center of Effort


Standards


See Standards Correlation Charts related to the National Standards. Common Core Standards relate to mathematics and the K-12 Framework for Science Education relate to Science.


Objectives Students will: u Predict whether an object will sink or float when placed in salt and fresh water. u Identify factors that affect the ability of an object to float. u Explain the relationship of buoyancy and density. u Explain how both sailboats and tankers can float even though they are so heavy.


Materials


• Student Sheet 1 (1 per student) • One half stick (about 2 ounces) of modeling clay (non-hardening) per student • Heavy duty aluminum foil (alternative to clay) • One tub of water, at least six inches deep, per four or five students • One hundred large washers, e.g., 1.5” fender washers (available from hardware stores) • Paper towels


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Part III: 60 - 100 minutes Part IV: 60 - 100 minutes


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