Many phenomena in life are periodic in nature. A task-based lesson asks scholars to explore one of these phenomena. They collect data showing the sunrise time of a specific location over the period of a year. Using the data, they create...

Maria Mitchell discovered a comet, became the first female astronomer in the United States, and even has a crater on the moon named after her! Learn more about her passion for the stars with an informative reading passage, followed by...

Use this website to learn how to identify animal tracks and view pictures of the tracks left by sixteen different animals.

This encyclopedia article explores various aspects of computers and the internet. Content includes a focus on the "Electronic Era," how computers work, internet safety, various resources, and much more.