If investigation is a goal, the students will need to manipulate a critical variable while observing the responses of the plants.
(investigation; is; a goal) (the students; will need; to manipulate a critical variable while observing the responses of the plants) Context(the students will need,List([28, 50))):(the students; will need to manipulate; a critical variable; T:while observing the responses of the plants) Context(the students will need to manipulate,List([28, 64))):(the students; will need to manipulate a critical variable observing; the responses of the plants)
the students will need,List([28, 50)) the students will need to manipulate,List([28, 64))
investigation the students the students the students
is will need will need to manipulate will need to manipulate a critical variable observing
a goal
to manipulate a critical variable while observing the responses of the plants
a critical variable T:while observing the responses of the plants
the responses of the plants