Science · Year 3

Active learning ideas

Air Resistance: Slowing Things Down

Active experiments let students feel air resistance directly, turning abstract pushes into observable slowdowns. When learners drop, spin, and parachute, they connect force to motion in ways that pictures or words alone cannot explain.

• National Curriculum Attainment Targets
• KS2: Science - Forces and Magnets
• KS2: Science - Working Scientifically

• 30–45 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Plan-Do-Review
• 45 min · Small Groups

Parachute Challenge: Design and Test

Provide plastic bags, string, and small weights. Students cut parachutes of different sizes, attach strings and weights, then drop from a fixed height like a balcony. Record landing times and adjust designs for slower falls. Discuss surface area effects.

Analyze how a parachute helps slow down a falling object.

Facilitation Tip

During the Parachute Challenge, remind students to keep the string length and payload mass identical so only the canopy’s surface area varies.

What to look for

Show students two objects of similar weight but different shapes (e.g., a flat piece of paper and a crumpled ball of paper). Ask: 'Which object do you predict will fall faster and why?' Record their predictions and the reasons given.

• Remember
• Apply
• Analyze
• Self-Management
• Decision-Making
• Self-Awareness

Activity 02

• Plan-Do-Review
• 30 min · Pairs

Paper Shapes Drop: Predict and Compare

Cut paper into shapes like squares, triangles, and circles of equal mass. Students predict fall order, drop them together from shoulder height, and time descents with stopwatches. Repeat with crumpled versions to vary surface area.

Design a simple experiment to demonstrate air resistance.

Facilitation Tip

For the Paper Shapes Drop, have pairs time each drop with a shared stopwatch to foster agreement on reliable measurements.

What to look for

Give students a small card. Ask them to draw a simple parachute and label the part that creates air resistance. Then, ask them to write one sentence explaining how this part helps slow down a falling object.

• Remember
• Apply
• Analyze
• Self-Management
• Decision-Making
• Self-Awareness

Activity 03

• Plan-Do-Review
• 35 min · Whole Class

Feather vs Coin: Air Push Demo

Drop a coin and feather side by side, then squeeze the feather or use a tube to reduce air resistance. Students observe speed changes and measure distances in a marked drop zone. Extend by adding paper fins to the coin.

Predict which shape of paper would fall fastest through the air.

Facilitation Tip

At the Spinner Station, ask students to hold the spinners at the same height before release to ensure consistent starting conditions.

What to look for

Pose the question: 'Imagine you are designing a new type of kite. What features would you include to make it fly well, and how would air resistance play a role?' Facilitate a class discussion, encouraging students to use the vocabulary learned.

• Remember
• Apply
• Analyze
• Self-Management
• Decision-Making
• Self-Awareness

Activity 04

• Plan-Do-Review
• 40 min · Small Groups

Spinner Station: Rotate and Refine

Fold paper into pinwheels or spinners with varying arm lengths. Students predict spin and fall rates, launch from height, and tally results on class charts. Iterate designs based on group data.

Analyze how a parachute helps slow down a falling object.

What to look for

Show students two objects of similar weight but different shapes (e.g., a flat piece of paper and a crumpled ball of paper). Ask: 'Which object do you predict will fall faster and why?' Record their predictions and the reasons given.

• Remember
• Apply
• Analyze
• Self-Management
• Decision-Making
• Self-Awareness

A few notes on teaching this unit

Start with quick, concrete drops so students feel the difference between a flat sheet and a ball. Encourage prediction and immediate testing to build curiosity before introducing vocabulary. Avoid long explanations up front; let the phenomenon prompt the questions students need answered.

Students will explain how shape, surface area, and weight change falling speed, using terms like drag and air resistance accurately. They will plan fair tests, record data, and revise designs based on evidence.

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Watch Out for These Misconceptions

• During the Feather vs Coin activity, watch for students who claim air resistance only affects the feather.

  Use the coin and feather drop to show that both objects feel air resistance; time each drop and ask students to explain why the feather’s slow fall is more noticeable.

• During the Paper Shapes Drop, watch for students who think larger paper always falls slower.

  Have students time a flat sheet, a folded sheet, and a crumpled ball to reveal that shape and surface area—not size—drive the difference.

• During the Parachute Challenge, watch for students who say the parachute pushes up to slow descent.

  Ask students to point to where the air pushes on the parachute and to trace the direction of that push, linking drag to upward resistance against gravity.

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Methods used in this brief

• Plan-Do-Review