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 'F' Click on    to hear the word and definition. Click on the picture to see a bigger picture. Some are animations. fall the season after summer  In some places, leaves change color in the fall. float to stay on top of water  Some solids float. flowers the plant part that makes seeds  Flowers make seeds. food chain shows what animals eat  The mouse is part of a food chain. food web a group of several food chains that are connected  Plankton is an important part of the ocean food web. force a push or a pull  It takes a force to move something. forest a place with many trees and other plants  The trees in this forest are very tall. fossils what is left of living things from the past  Some fossils are animal footprints. freeze to change from a liquid to a solid  When it gets very cold, water will freeze. friction a force that slows down moving things  A skater stops by using friction. Leave Glossary