Lesson Plan : Bubble-ology

Teacher Name:
 kim Ritchie
 Grade 3

  Bernoulli Principle
 bubbles, air pressure, aerodynamics
 The purpose of this activity is to introduce aerodynamics to the students by challenging them to devise the best ways to keep a bubble aloft. In this fun context, you'll teach Bernoulli's principle and help explain how airplanes fly.
 Devise ways to keep a bubble from hitting the ground, without touching it with their hands or with any other object. Students will make 2 lists: methods that worked, and those that didn't work. As a group, students will use their demonstrations to decide whether increasing the pressure under the bubble or decreasing the pressure over it keeps an object aloft.
  1 gallon container, 8 oz. dishwashing liquid, 1 measuring cup, 1 eyedropper, glycerin (optional), pint-sized containers, straws or other hollow tubes, index cards
 Daniel Bernoulli discovered a scientific principle that now carries his name. It became the basis for airplane flight many years after its discovery. The Bernoulli principle states that the faster air flows, the less pressure it exerts.
 Divide my class into small groups. Ask the groups to experiment on methods that will keep their bubbles from hitting the ground and which methods that work by increasing the pressure under the bubble, or by decreasing the pressure over it. May sugest using index cards.
Checking For Understanding:
 Students write a group report and share results of this activity, explaining which method worked and why.

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