Discover how old Earth is and how it was formed. Find out what's inside Earth and how its crust is made up of pieces that fit together like a jigsaw puzzle. Read legends about why we have night and day and where the first living things came from. Kids can even make a volcano and discover why Earth looks blue from space. Part of the Starting with Space series, The Earth combines facts, folklore and hands-on activities to explain space exploration and scientific discoveries about The Earth.