Test Area
Set up a test station near the parachute table with 1-4 chairs,
benches, or a stage for participants to drop parachutes from.
Put container of weights (bears, etc.) near the test station.
Secure stopwatch leashes to nearby chairs with masking tape.
Procedure
1. Facilitator 1 helps participants make parachutes at the table, using the prototype as a guide.
2. Once the parachute is created, direct participants to the Test Area.
3. Facilitator 2 monitors the Test Area.
4. Participants stand on an elevated surface and drop their parachutes (by holding the napkin
center point where the 4 creases come together).
5. Participants may modify parachutes with different weights of string, canopy materials, or the
addition of vents or different weights. Encourage only 1 design modification before re-
testing, to see the effect of the change.
6. Compare parachutes by having one person drop a parachute from each hand.
7. Record slowest-falling parachutes on laminated Recording Sheet, with dry-erase marker.
8. Reference color images for real-life application of parachute design.
Questions to Ask while Participants Work
1. How did you get your parachute to work?
2. What can you change to make your parachute fall more slowly?
3. How did you change your parachute after looking at other people’s parachutes?
4. Why do you think some parachutes fell more slowly than others?
5. Did any of your results surprise you?
6. Did you ever get stuck during this engineering challenge? What did you do to move past it?
Big Concepts in Science & Engineering
You need a force to move something. A force is a push or pull.
Parachutes are designed to take advantage of air resistance pushing up on the canopy to
counter the force of gravity pulling down on the object.
Engineers define problems and propose solutions.
Engineers constantly modify their designs to improve their performance.
Clean-up
Return materials to individually labeled containers (i.e. bags).
Return all items neatly to bins, including small and easy-to-miss items.
Inventory each bin, using the Materials List on bin side. Clearly note any missing materials.
Source
Adapted from FOSS: CA ed. Berkeley, CA: University of CA, 2007.
Grade 1: Air & Weather - Inv. 1 Exploring Air
his is the
weighted
parachute,
ready for
fli
ht.