Sponge Bob Scientific Method

Krusty Krabs Breath Mints

Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people

get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath

to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating

a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich;

however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told

that they were getting the breath mint that would cure their bad breath. Two hours after eating the

crabby patties, thirty customers in Group A and ten customers in Group B reported having better breath

than they normally had after eating crabby patties.

SpongeBob Clean Pants

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told

him that he should try using Clean-O detergent, a new brand of laundry soap she found at Sail-Mart.

SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the

Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the

Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.

Squidward’s Symphony

Squidward loves playing his clarinet and believes it attracts more jellyfish than any other instrument he

has played. In order to test his hypothesis, Squidward played a song on his clarinet for a total of 5

minutes and counted the number of jellyfish he saw in his front yard. He played the song a total of 3

times on his clarinet and repeated the experiment using a flute and a guitar. He also recorded the number

of jellyfish he observed when he was not playing an instrument. The results are shown in the chart.

Super Bubbles

Patrick and SpongeBob love to blow bubbles! Patrick found some Super Bubble Soap at Sail-Mart. The

ads claim that Super Bubble Soap will produce bubbles that are twice as big as bubbles made with

regular bubble soap. Patrick and SpongeBob made up two samples of bubble solution. One sample was

made with 5 oz. of Super Bubble Soap and 5 oz. of water, while the other was made with the same

amount of water and 5 oz. of regular bubble soap. Patrick and SpongeBob used their favorite bubble

wands to blow 10 different bubbles and did their best to measure the diameter of each one. The results

are shown in the chart