Hickory Dickory Dock: The Biological Clock

Learners investigate how the Earth's rotation affect the length of day. In this earth science lesson, students construct a sighting apparatus and record their observations over a few days. They analyze data collected and formulate a...

You don't have to be a scientist or even out of high school to contribute to scientific research. In the 12th instructional activity in the series of 21, scholars use this opportunity to add to the growing body of scientific knowledge...

Explore optics using an inquiry-based experimental approach! Young scholars use a set of materials to design and build a unit capable of focusing a beam of light. They experiment with different lenses to determine the best approach to...

What effects do temperature and carbon dioxide levels have on the zooplankton of Antarctica? This concluding lesson plan in a short unit on climate change and the ocean helps environmental scientists answer these questions. After...

Pupils explore Upham Woods at night and investigate about the special adaptations of nocturnal animals. They identify three nocturnal animals and how they are adapted to the night. Students explain what night vision is and how it works.

What will you do with an extra 30 seconds? Scholars learn that December 22nd is 24 hours and 30 seconds long, which classifies it as the longest day of the year. An engaging video lesson analyzes Earth's orbit in combination with its...

Can someone really have a "biological clock"? Discover why many organisms on earth have an inherent awareness of where they are in the day's cycle.This video discusses animal adaptations, the earth's revolutions, and how light and...

Students complete several activities that stimulate their assessment of time. They consider the term 'biological clock' and how animals in the wild depend on their own internal clocks for survival.

How many hours should be in a day? One species of drosophila naturally prefers a 24.5 hour day, while another strongly prefers a 19-hour day. An animation and graph share data from each of these species when exposed to the typical light...