Buoyancy Bundle (Lesson + Activity)

Downloadable (2 PDF files, 1 PPTX & 2 mp4 videos)

Ideal for grades 5-8 Buoyancy is approximately 50 minutes long and includes: 

  1. Introduction Video: This short video is an introduction to the concepts and terminology of this topic.
  2. Lesson: This lesson introduces the concept of buoyancy. A 16 slide lesson PowerPoint is included with experiment notes for a short activity involving ketchup.
  3. Real World Example: The Science of Aquatic Rescue: Floating can be pretty handy. Watch this video to find out more about how scuba divers use buoyancy to their advantage.
  4. Activity: Egg Float: Students have a chance to manipulate the density of a liquid.

Additional resources required for this activity:

  • a clear cup or beaker
  • a hard-boiled (cooked) egg in the shell
  • a teaspoon
  • salt
  • warm water
  • empty 2L pop bottle with lid
  • water
  • ketchup packets