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Let's investigate !
How do the parachute materials affect air resistance?
If the material of the parachute is changed to a plastic bag over handkerchief then the time of the descent will be slower and the accuracy will be better. This will create air resistance.
1-Cut a square from the plastic bag and a square from the paper that is the same size as the handkerchief.
2-Cut twelve 6”pieces of string.
3-Tie one piece of string to each corner of the plastic square.
4-Tie one piece of string to each corner of the handkerchief.
5-Punch a hole in each corner of the paper and tie a piece of string through each hole.
6-Attach a ball of clay to the bottom of the plastic square and handkerchief. Use the dangling string pieces for the attachment.
7-Stand on a chair or ladder.
8-Drop each parachute at the same height from the elevated location.
9-Have another person record the time from the moment the parachute is release until it hits the ground.
Observe & record
The parachute which is made from handkerchief will fall to the ground faster than the parachute which is made from plastic bag.
Our hypothesis is accepted