Science · Grade 6

Active learning ideas

Bernoulli's Principle and Lift

Active learning works well for Bernoulli's Principle because students need to see and feel pressure differences to truly understand lift. Abstract concepts like airflow and pressure become concrete when students manipulate materials and observe immediate outcomes. This hands-on approach builds lasting understanding and corrects common misconceptions through direct experience.

• Ontario Curriculum Expectations
• MS-PS2-2

• 20–50 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Simulation Game
• 20 min · Pairs

Demonstration: Straw and Paper Strip

Give each pair a straw and strip of paper. Students hold the paper near the straw's top and blow air across the top edge. Observe the paper lift upward. Pairs record predictions and explanations, then share with the class.

Explain how the shape of a wing generates lift according to Bernoulli's principle.

Facilitation Tip

During the Straw and Paper Strip demo, position yourself so all students can see the strip lift when they blow, then circulate to hear their immediate reactions.

What to look for

Provide students with a diagram of an airplane wing cross-section. Ask them to label the areas of higher and lower pressure and write one sentence explaining why this pressure difference creates lift.

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Activity 02

• Simulation Game
• 45 min · Small Groups

Experiment: Fan and Wing Models

Students construct paper wings with varying camber using templates. Place wings on a balance under a fan and measure lift by noting deflection. Groups change wing shapes and compare results in data tables.

Design a simple experiment to demonstrate Bernoulli's principle.

Facilitation Tip

For the Fan and Wing Models experiment, assign roles to students to ensure everyone participates in adjusting airflow and recording observations.

What to look for

Ask students to hold a strip of paper horizontally just below their lower lip. Instruct them to blow firmly across the top of the paper. Ask: 'What happened to the paper, and why did it happen?'

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Activity 03

• Simulation Game
• 50 min · Small Groups

Design Challenge: Optimized Gliders

Teams design and build paper gliders emphasizing wing shape for lift. Test flights across the room, measure distances, and adjust designs based on Bernoulli predictions. Class compiles average data for analysis.

Analyze the relationship between air speed and pressure in creating lift.

Facilitation Tip

In the Design Challenge, set clear time limits for prototyping and require students to explain their wing shape choices before testing.

What to look for

Pose the question: 'Imagine you are designing a kite. How would you shape the kite to make it fly higher, and what scientific principle are you using?' Facilitate a brief class discussion on their ideas.

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Activity 04

• Stations Rotation
• 40 min · Small Groups

Stations Rotation: Pressure Demos

Set up stations with ping-pong ball in hairdryer stream, suspended balloon between blowers, paper tunnel collapse, and wing lift model. Groups rotate, observe, and note pressure effects at each.

Explain how the shape of a wing generates lift according to Bernoulli's principle.

What to look for

Provide students with a diagram of an airplane wing cross-section. Ask them to label the areas of higher and lower pressure and write one sentence explaining why this pressure difference creates lift.

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

A few notes on teaching this unit

Teach Bernoulli's Principle by starting with what students can observe and manipulate, then layer in the science. Avoid overwhelming them with equations; focus on airflow and pressure differences first. Use repetition across activities to reinforce the concept, and always connect back to airplane wings to ground the abstract in the concrete. Research shows that multiple, varied demonstrations help students transfer their understanding to new contexts.

Successful learning looks like students confidently explaining how wing shape affects air speed and pressure, not just memorizing the principle. They should connect their observations to real-world flight and apply their new understanding to design challenges. Peer teaching and clear justifications of results demonstrate deep comprehension.

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Watch Out for These Misconceptions

• During the Design Challenge, watch for students who describe lift as resulting from wings flapping like a bird's. Redirect by asking them to focus on the pressure differences shown in their Fan and Wing Models experiment.

  After the Fan and Wing Models activity, remind students that fixed wings generate lift through pressure differences, not motion, and have them compare their model results to the wing designs they sketched.

• During the Straw and Paper Strip demo, watch for students who assume air pressure is the same above and below the paper. Redirect by asking them to feel the pressure difference with their hands as they blow.

  After the Straw and Paper Strip demo, ask students to explain why the paper rises by pointing to the pressure differences they observed, using a diagram if needed.

• During the Fan and Wing Models experiment, watch for students who think lift requires forward motion. Redirect by asking them to consider why the stationary wing still rises when air flows over it.

  After the Fan and Wing Models experiment, have students summarize how relative airflow creates lift, using their test results as evidence in a quick class discussion.

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Methods used in this brief

• Simulation Game
• Stations Rotation