To determine which mixture of chemicals in nail polish lasts the longest
Equipment
- different colour nail polish
- plastic strips
- plastic containers
- vinegar
- nail polish remover
- cotton bud sticks
- list the materials of each nail polish down
- paint a square (2cm by 2cm) using each colour on a plastic strip. To refine the square to make it as accurate as possible, use the cotton bud sticks and the nail polish remover to completely remove smudges.
- pour 300ml of vinegar into a plastic container, thus giving the nail polish time to dry
- submerge the plastic strip with the nail polish squares in the vinegar (making sure that the nail polish has dried)
- leave the container in a stabe environment, making sure to check up on it on regular time periods
- repeat the experiment. Repetition of the experment can be held at the same time to reduce variables
- after 4 weeks, take the plastic strip out and measure each square. this can be done by laying the strip on grid paper
- record and analyse
