Hair Straightener Test Meghan Baker 12/4/13 title page

My Scientific Question Which hair straightener works better? scientific question

Background I picked straighteners don’t work very well so i did this test to see which one works better so my mom can use the better working one . And so she will stop complaining.ked hair straighteners because my mom is ALWAYS complaining that both of the hair background

Hypothesis If I test both straighteners, then the expensive one will work better. hypothesis

Variables Independent - two hair straighteners Dependent- whether my hair is straight Constants- same type of hair,same temp, same amount of time variables

Procedure 1- Turn on straightener 2- Part hair 3- Straighten one side of head 4-repeat steps 1-2 5- Straighter other side of with other straightener 6- record by taking pictures

Straightener A Data Straightener B The expensive hair straighteners straightened the hair 88% ( Straightener A ) The cheaper straightener straightened the hair 60% ( Straightener B )

Conclusion My question was which hair straighteners works better? My experiment was testing to see which hair straightener would make the hair straighter.the expensive one straightened the hair the most the other only straightened it a little .