From Ms Kolkmeyer
Students in 5th grade are learning about the scientific method. They are learning about dependent and independent variables, control groups, and the importance of having controlled experiments where the method of investigation remains constant.
Recently, they conducted an investigation where they made a prediction about how many drops of water a penny could hold. Students tested their predictions using both uncontrolled and controlled trials. Many were surprised when their predictions, ranging from 3-8 drops of water, were incorrect. Many students were able to fit close to 45 drops on one single penny! In each trial, students recorded their methods as well as appropriate data. They learned that without controlling the method in which an investigation is conducted, the results cannot be valid, or trusted.
This practice will be key as students prepare for the 5th grade science fair in 4th quarter!