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We found 4 resources with the keyterm photoperiod
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The colors most noticed and characteristic of particular weather patterns are listed on each of these slides. The reasons for each chemical changing the appearance of leaves are given and the effect of particular climate changes...
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.
Young scholars track photoperiod (daylight hours) over time and predict how daylight change during different seasons. This helps build their understanding that ever-changing daylight is the driving force for migrations and all other...
Young scholars investigate the effect of day length on animal migrations. They view a Powerpoint presentation, identify their own personal migrations and cues, answer discussion questions, and test a hypothesis about seasons.