Students are observing two families of ducks living in the school pond. They decide to do a scientific investigation that involves the ducks. The students have only one class period to complete the investigation. Which of the following is a valid hypothesis the students could investigate?
A.
Ducklings think humans are funnier than adult ducks do.
B.
Ducks first came to the pond due to its high level of water quality.
C.
Ducklings will likely move to a new pond when they are fully grown.
D.
Ducks from different families will not feed within 10 feet of one another.
