CHEAP VS EXPENSIVE TSHIRTS LEADER WONG WAIHO32 GROUP

CHEAP VS EXPENSIVE T-SHIRTS LEADER: WONG WAIHO(32) GROUP MEMBER: PRASHANT( 29) , UMER(21) KATHLEEN(26) , AYUB(13)

REASON FOR THE INVESTIGATION • Generally speaking, the real purpose of conducting a research is to gain new knowledge and gather evidence. • To know if the shirt is worth buying. • To find the right t-shirt for that person who want a good t-shirt.

INVESTIGATION TOPIC Are expensive t-shirts worth buying? Drying speed Comfortable Waste of money or not

RELATED SCIENTIFIC KNOWLEDGE • Fabric • Design • Time it takes to dry • Comfort

T-SHIRTS USED School P. E T-shirt ($77) Adidas T-shirt ($220) Nike T-shirt($230)

P. E ( COTTONS, WOOL) THE FABRICS ADIDAS (commonly use recycle materials like polyester, rubber, cotton PLA( WOOD PIULP), wool and leather. ) NIKES (cotton ), (made of 100% polyester 150 gsm dri fit mesh fabric)

SCIENTIFIC KNOWLEDGE "water evaporation, it takes some of the heat energy from our clothes" "evaporation is a process where liquid dries and turns into water vapor" "when a wet object dries, it will lose a lot of heat because of evaporation"

stand Hair dyer Water Cup Dropper Test tube clothes EXPERIMENTAL SETUP

PROCEDURES Use 5 /10/15 water drop wet the part of T-shirt Use 10 ml of water to wet the T-shirt Use stop watch to record the time Turn on the heater and start record Use tissue on it and see which is more dry

COLLECT EVIDENCE Make video on the wet to ”dry T-shirt”

IN THE EXPERIMENT VIDEO PICTURE HTTPS: //YOUTU. BE/LEOQJOQNYH 8

RECORD Sport T-shirt School Pe T-shirt Nike Adidas 5 drops /time 6 min 11 s 2 min 30 s 3 min 10 drop /time 6 min 56 s 2 min 51 s 4 min 35 s 15 drop /time 7 min 34 s 3 min 10 s 7 min 10 s 10 ml/time 12 min 53 s 9 min 14 s 11 min 5 s

CONCLUSIONS • The most comfortable and the most worth buying is Nike. Even though it is the most expensive T-shirt; it is worth the price. It is also the most comfortable to wear because its fabric is very lightweight that means it is easy to move around in.

ERROR OF THE EXPERIMENT Unsure if the t-shirts is fully dry. Not accurate enough of the time measurement of the results of the experiment. The heat of hair dryers. Unsure if the water amount is the same as the others. This Photo by Unknown author is licensed under CC BY-NC.

CORRESPONDING IMPROVEMENT FOR THE EXPERIMENT • The accuracies of our experiment‘s results of the time. • To check the t-shirts of the dryness accuracies. • an appropriate place to do the experiment. • Buy more stop watches and hair dryers to do the experiments.

REFLECTIONS • Find ways to do the experiment. • Get more information about the T-shirt’s. • Do the experiment again to get a more accurate results.

THANK YOU!