Oct 19, 2023 · A rainbow is a multicolored arc made by light striking water droplets. The most familiar type rainbow is produced when sunlight strikes raindrops in front of a viewer at a …

The Grosvenor Teacher Fellowship (GTF) is a professional development opportunity for pre-K–12 educators made possible through a collaboration between Lindblad Expeditions and the …

Launching a rocket into space is one of humankind's crowning achievements. Learn about how rockets work, what happens during a launch, and how centuries of innovation made space …

On June 19, 1866, formerly enslaved Black people in the U.S. state of Texas celebrated a year of emancipation with the “Juneteenth” holiday.

Oct 19, 2023 · Electromagnetism is one of the four fundamental forces of nature. Learn about the relationship between electricity and magnetism, the different wavelengths on the …

May 6, 2025 · Watch this brief video picture of practice that captures everyday classroom life and provides real-life examples of how students learn and think about ocean topics.

Apr 3, 2025 · The world's demand for fresh water is high, though there is a limited supply. How can we be more responsible with this crucial resource and its ecosystems?

Oct 19, 2023 · At any moment, about 2,000 thunderstorms are occurring worldwide. Learn how thunderstorms form, what causes lightning and thunder, and how these violent phenomena …

Corals are small marine animals. The “hard” type of coral grows with the help of algae, which gives it color and nutrients that help it form a sturdy, stony skeleton. Reefs, which form through …

Jan 22, 2024 · Watch this brief, video picture of practice that captures everyday classroom life and provides real-life examples of how students learn and think about energy topics.