Two students are comparing scientific experiments to investigations. They came up with the following ideas.
Student A: Testing plant growth in different types of soils
Student B: Comparing the water level in a lake during different times of the year
Which student gave an example of a scientific experiment?
A.Student A because it requires experimental and control groups
B.Student B because it requires a hypothesis
C.Student A because it is preferably done in natural settings
D.Student B because it is preferably done across a long period of time
