Earth Science & Climate

What Is the Most Common Type of Asteroid?

Is the Jordan River Freshwater or Salty?

What Geologic Process Creates Yellowstone’s Geothermal Features?

How Old Are New Zealand’s Mountains?

How Does Recycling Help Climate Change?

What Are the Five Longest Rivers in the World?

What Keeps the Earth Spinning?

What Is a Possible Disadvantage of Using a Smaller Contour Interval?

How to Improve Water Retention in Soil

How Thick Is the Ice on Europa?

How Big Is a Boulder? The Scientific Size Definition

What Is the Difference Between a Monsoon and a Hurricane?

What Is the Rarest Gemstone on Earth?

How Many Degrees Does the Earth Rotate Each Hour?

Why Is It Called the Arctic Circle?

How High Are the Clouds? Altitudes in Miles

What Type of Rock Is Malachite?

Does the Moon Rise in the East?

When Does It Get Dark After Daylight Savings?

What Are Weather Instruments and How Do They Work?