Return to Book List   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 'M' Click on    to hear the word and definition. Click on the picture to see a bigger picture. Some are animations. magnetic field the area around a magnet where its force pulls  A magnetic field can pull through solids, liquids, and gases. make a model make something to show how something looks  You can make a model to show where a polar bear lives. mammals a group of animals with hair or fur that feed milk to their young  This animal is a mammal. mass how much matter is in an object  The metal ball has more mass. matter what makes up all things  The block is made of matter. measure find out how far something moves, or how long, how much, or how warm something is  You can measure how long the toy car is. measuring cup measures how much space a liquid takes up  This is a measuring cup. melt to change from a solid to a liquid  Heat makes the butter melt. migrate to move to another place  In winter, these animals migrate from the arctic to a warmer habitat. minerals the building blocks of rocks  Minerals are a natural resource. Leave Glossary