Return to Book List Grade 4     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 'A' Click on    to hear the word and definition. Click on the picture to see a bigger picture. Some are animations. amphibian animals that live in water and on land  A frog is an amphibian. Arctic a very cold place near the North Pole  In the Arctic, snow is on the ground for much of the year. attract A magnet can attract some things to it.  Iron is a metal that magnets attract. axis a line through the center of a spinning object  Earth's axis is an imaginary line that goes from the North Pole to the South Pole. Leave Glossary