THE INK OPERATION

QUESTION:

What solvents (tap water, Suave hair spray, rubbing alcohol, white vinegar, or Tide detergent) will remove ink?

purpose

THE PORPOSE OF MY INVESTIGATION IS TO DETERMINE WHAT SOLVENT WILL REMOVE INK . This is important to know because if you have a stain of ink on your shirt, which solvent could you use to remove it without damaging the fabric.

HYPOTHESISI hypothesize that Tide

detergent will remove ink the best. We believe this because when we use detergent, it removes most of the stains to be found, on the cloth.

PROCEDURES

MATERIALSToothbrush5 droppers1 bottle of Suave hair spray5 spray bottles1 bottle of rubbing alcohol500 ml of Tide detergent500 ml of white vinegar500 ml of tap waterA jar of ink25 pieces of 4x4 cloth

Variables Manipulated variable The solvents

Responding variable The remainder of ink left on cloth

Constant variables The amount of each solvent Size of cloth Rating scale Toothbrush Method of rubbing time

directions 1. Gather all materials 2. Lay out 5 pieces of cloth of 4 cm x 4 cm 3. Drop two drops of ink on each square of cloth 4. Spray three sprays of each solvent on each square 5.Scrub each solvent for 30 seconds with an old

toothbrush 6. Leave cloth pieces on a towel under the shade for 3

hours 7. Rinse each cloth piece in water for 15 seconds 8. Rate each cloth piece for the amount of ink remaining

using a scale of 1 to 10 with 1 being all ink remaining and 10 being no ink remaining. RECORD.

9. Repeat steps 2-8 for four more trials

Photograph

SOLVENT REMOVAL RATE

SOLVENT TRIAL 1 TRIAL 2 TRIAL 3 TRIAL 4 TRIAL 5 AVERAGE

Tap WATER 2 4 1 3 2 2.4

SUAVE HAIRSPRAY 4 2 2 3 3 2.8

RUBBING ALCOHOL 5 3 2 4 3 3.4

WHITE VINEGAR 3 1 2 3 2 2.2

TIDE DETERGENT 5 5 4 6 6 5.2

Rating Scale: 1 = all ink remaining 10 = no ink remaining

Graph

conclusionMy hypothesis was correct. Tide detergent removes ink the best. Using a scale 1-10, the average for tap water was 2.4. The average for Suave hairspray was 2.8. For rubbing alcohol was 3.4. white vinegar was 2.2. Finally, Tide detergent was 5.2. If I had to do this experiment again, instead of rubbing, I would of just sprayed it and left it alone for three hours.