
Rainbow - National Geographic Society
Oct 19, 2023 · A rainbow is an optical illusion —it does not actually exist in a specific spot in the sky. The appearance of a rainbow depends on where you're standing and where the sun (or …
Visible Light - Education
Oct 19, 2023 · The different wavelengths of visible light are seen as the colors of the rainbow: red, orange, yellow, green, blue, indigo, and violet. The longest wavelengths (around 700 …
Adaptation and Survival - Education
Oct 19, 2023 · An adaptation is a mutation, or genetic change, that helps an organism, such as a plant or animal, survive in its environment.
The Five Major Types of Biomes - Education
A biome is a large area characterized by its vegetation, soil, climate, and wildlife. There are five major types of biomes: aquatic, grassland, forest, desert, and tundra, though some of these …
Earth - National Geographic Society
The structure of the earth is divided into four major components: the crust, the mantle, the outer core, and the inner core. Each layer has a unique chemical composition, physical state, and …
Rainbow Serpent - National Geographic Society
Oct 19, 2023 · Some ancient people of Australia believe a "rainbow serpent" slithered from the water to create the world. Could this fascinating myth be based on fact? Join Wild Chronicles …
Hydrologic Cycle - Education
Oct 19, 2023 · The water cycle describes how water is exchanged (cycled) through Earth's land, ocean, and atmosphere.
Wildfires: How They Form, and Why They're so Dangerous
Oct 19, 2023 · As deadly wildfires continue to rage across Northern California’s wine country, with winds picking up speed overnight and worsening conditions to now include a combined 54,000 …
Hemisphere - National Geographic Society
Mar 6, 2024 · A circle drawn around Earth’s center divides it into two equal halves called hemispheres, or half spheres.
Viruses - National Geographic Society
Oct 19, 2023 · Viruses are tiny infectious agents that invade host cells and cause disease. Although they are harmful, viruses also have interesting technological potential.