Where Is the Moho or Mohorovicic Discontinuity?
The Mohorovicic discontinuity is to be found between the earth’s crust and the earth’s mantle. Mohorovicic was a famous Croatian scientist, a seismologist. He...
Read More
Where Would You Find Pearls?
Where Would You Find Pearls? Pearls come from mollusks – a group of marine animals which includes squids, clams, and oysters. These beautiful round jewels are the...
Read More
How Does a Clam Make Its Shell?
If you have ever examined a clam shell, you may have wondered how the shell got bigger as the clam grew. A clam is born with a shell just the right size for its body....
Read More
What Is the Continental Drift Theory?
What Is the Continental Drift Theory? Long ago there was only one continent on earth, a huge super-continent which geologists now call “Pangaea,” a Greek...
Read More
How Are Natural Diamonds Formed?
How Are Natural Diamonds Formed? Diamonds are made of pure carbon. Formed naturally in volcanoes, where tremendous heat and pressure act on the carbon found in the...
Read More