Mount St. Helens is a volcano. It erupted in 1980. It destroyed forests. It buried soil. Nothing could grow.
Photo Credit: Harry Glicken/USGS
In the Know
What is 3-D Printing?
To make a 3-D object, you start with a model. … read more
In the Know
World Teachers’ Day
World Teachers’ Day is in October. Teachers are very important! … read more
In the Know
Jane Addams Day
December 10 is Jane Addams Day. Why was Jane Addams … read more