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 Krabby 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.

1. What is the independent variable?
2. What is the dependent variable?

Egg Lab

Have you ever observed something and then had a question about why it happened? Perhaps you even had a guess as to why something happened. Once you start asking questions and making predictions, SCIENCE is happening!
In the Egg Lab, students made observations of a hard boiled egg when they placed it in two different liquids. They made a prediction and then made observations.
What do you think was in the two beakers? Why? Could you create a test to figure out if your guess was correct?