Earth Science & Climate

What Planet Is Purple? The Truth About Planetary Colors

How Is Turquoise Mined and Processed?

What Is the Largest Planet in the Solar System?

What Is a Gentle Slope on a Topographic Map?

Who Discovered the Water Cycle? A Look at Its History

How Long Does CO2 Last in the Atmosphere?

What Caused the 2011 Super Outbreak of Tornadoes?

Can Lightning Strike Twice in the Same Place?

What Is the Tropic of Cancer and the Tropic of Capricorn?

How Is a Rainbow Formed? The Science for Kids

How Big Was the Universe After 1 Second?

How Hot Is Blue Lava? The Science Behind the Flames

How Are P and S Waves Categorized?

How Old Are Quartz Crystals? From Growth to Geological Age

Where Does the Amount of Sunlight Change the Most?

How to Get Petroleum: From Exploration to Extraction

What Is the Hottest Time of the Day in California?

What Is the Shortest Day of the Year in California?

Why Does My Garden Keep Flooding When It Rains?

Why Is Antarctica a Continent but the Arctic Is Not?