Expectant earth scientists examine the bottom side of a leaf and learn the role of the stomata. They consider the gas exchange that occurs through these structures and relate how the climate is changing to its impact on food crops. This...

  Learners observe a leaf and discuss the way that water is released from a leaf through its stomata.  For this water cycle lesson plan, students calculate how much water leaves produce from a whole tree.     

Students investigate how plants transport water and nutrients through the plant. In this transportation in plants lesson plan, students use glass tubing, celery stalks, food coloring and leaves from plants to observe adhesion and...

Students participate in a lab experiment to observe and measure the opening and closing of stomata. They focus on photoperiod, locate and identify stomata on a leaf and explain the role of stomata in the daily functioning of a plant.