Return to Book List Grade 5     Glossary   Choose a Letter | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | List of words for Letter 'V' Click on    to hear the word and definition. Click on the picture to see a bigger picture. Some are animations. vibrate to move back and forth quickly  The strings vibrate. volcano a mountain formed when hot, melted rock bursts through the surface and builds up  Mt. St. Helens is a volcano that erupted in 1980. volume the amount of space that something takes up  You can measure the volume of a liquid with measuring cups. Leave Glossary