Portable Sundial

Take your time with this lesson. Junior engineers read about different types of clocks and then work together to build a pendulum time-keeper. There are no hints as to how they might go about accomplishing this complex task, so you may...

Here is an interesting lesson on satellite tracking. Learners use various tracking techniques to find out where they go on a daily basis, what the environmental conditions are, and what they are doing during their "migrations." A...

Young scientists build on their previous knowledge and apply it to coronal mass ejections. By plotting the path of two different coronal mass ejections, they develop an understanding of why most don't collide with Earth.

What makes a clock tick or a bulb light up? The concept of work is explained to a backdrop of clever animation. Physics fans learn that the amount of work equals the product of the force and distance, and that the rate equals the amount...

Students study the apparent motion of the Sun in the sky over the course of a day and a year, and analyze what causes seasons on Earth. They participate in a project that has both a science as well as an art component.

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 make a sundial. In this time lesson, students determine the time of the day by creating a sundial. They check the time on the sundial, hourly, for one week. Afterward, they explore what happened to the shadows in reference to...

In this activity students will investigate the accuracy of sundials and the discrepancy that lies between "real time" and "clock time". They will track the position of the sun over the course of a relatively short period of time as they...

Do you often go to bed and wake up around the same time? Does your stomach begin to growl at the same time before eating lunch? This pattern is known as a circadian rhythm. Watch a video that explains the physiological phenomenon and how...

Students investigate the different types of sundials and their history.  In this shadows and time of day lesson students build their own sundials.