It's About Time
The Doppler Effect
In 1842, Christian Doppler proposed a theory relating the change of wavelengths based on motion. Young scholars observe the Doppler Effect on a small scale in a ball, on a larger scale from a car, and on the largest scale studying the...
Messenger Education
Exploring Solar Systems Across the Universe
Scientists have theorized that our solar system formed 4.6 billion years ago. In this pair of activities, learners first hypothesize how our solar system was formed. Using this information, groups then determine how scientists search for...
Teach Engineering
Weather Forecasting
According to the Farmers' Almanac, the weather will be nice today. Class members examine how weather forecasting plays a part in their lives with a resource that provides information on the history of forecasting, from using cloud...