Physical Science · Forces & Motion
Parachute Engineering: How Air Resistance Slows a Fall
Build two toy parachutes, compare drop times fairly, explain gravity and air resistance, and redesign a canopy based on data. Includes a different interactive activity and printable worksheet.
Read the science notes ↓
A quick look inside this lesson
What happens in class?
Question to start with
Does a wider canopy stop gravity?
What students actually do
Predict which descent may take longer.
Evidence of learning
Names load/height/release method.
Lesson plan
Parachute Engineering: How Air Resistance Slows a Fall
A step-by-step guide to help you teach this lesson.
Extra context for teachers
Science notes: Parachute Engineering: How Air Resistance Slows a Fall
A short concept refresher and teaching perspective. The full procedure, printable materials, and student tasks are available in the lesson resources above.
Science in context
Engineers plan fair tests
Make a small canopy and a larger canopy from the same material and shape. Attach the same type of toy load to both, using equally long strings.
Use times, not guesses
In a fictional example, a small canopy landed in 1.0, 1.2 and 1.1 seconds, while a large canopy landed in 2.0, 2.2 and 2.1 seconds. The large one fell more slowly in that test.
What makes the idea observable?
A wide paper canopy and a narrow paper canopy carry identical small toys. Both are released from the same mark. Which will take longer to reach the floor?
Predict a result, then use measurements rather than how the parachutes look.
A misconception worth addressing
- Gravity still pulls downward.
- A slower toy drop does not make homemade parachutes safe for people.
Teacher tip
- Offer ready-cut paper with equal-length strings.
- Use a three-trial record with visual clocks.
Verified curriculum references
Plan with confidence
Lesson overview
What students will learn
- Describe gravity as a downward pull and air resistance as a force opposing a falling parachute.
- Test small and large canopies while keeping other conditions the same.
Key science ideas
- Gravity pulls the parachute and its load toward Earth even when the canopy is open.
- As the model moves through air, air resistance acts against its motion.
- A wider open canopy often increases air resistance at the same speed when other conditions are alike.
Lesson at a glance
- Grade 3
- 45 min
- ~20 min prep
- 3-5-ETS1-3
- 8 materials
What’s included
- Lesson Plan
- Investigation
- Teacher Slides
- Printable Worksheet
- Teacher Answer Key
- Interactive Activity
- Vocabulary