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4 resources with the keyterm photoperiod

Videos (Over 2 Million Educational Videos Available)
Women's History Activator: Eleanor Roosevelt Video
5:34
Women's History Activator: Eleanor Roosevelt
Thomas Jefferson - Author of The Declaration of Indepence & 3rd U.S. President | Mini Bio | BIO Video
4:18
Thomas Jefferson - Author of The...
Biography of Mary Cassatt for Kids: Famous Artists for Children - FreeSchool Video
4:59
Biography of Mary Cassatt for Kids: Famous...
Other Resource Types (4)
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Lesson Planet

Light and Temperature Interaction

For Teachers 9th
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...
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Lesson Planet

Stomata: Microscopic Openings that Let Plants Breathe

For Teachers 7th - 12th
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.
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Lesson Planet

Reasons for Seasons

For Teachers 4th - 6th
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...
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Lesson Planet

Hickory Dickory Dock: The Biological Clock

For Teachers 11th - 12th
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.