Greenland's ice sheet is worrying scientists. It's melting.
We think of ice as snowflakes, ice cubes, snow cones, and dangerous patches on the sidewalk. Scientists have many different ways of categorizing ice too!
A mysterious geological feature can be found on the slopes of Mount Rainier, a volcano in Washington state. Learn more on this Moment of Science.
Scientists predict that within twenty years, the remaining glaciers at Glacier National Park will melt away. How will this effect our environment?