In the Sea Jellies leveled reader, fundamental science concepts in biology are explained through simply written text and colorful, fun illustrations. Young readers discover that sea jellies are soft-bodied animals that live in oceans, and although they used to be called jellyfish, they are not true fish. They have different shapes and sizes and swim by moving water in and out of the bell, the name for their body. Some sea jellies have tentacles that they use to catch food, and oral arms that move the food toward the mouth. Sea jellies are found in oceans around the world and many have beautiful shapes and colors. A pronunciation guide of scientific terms is included. 24 pages filled with engaging, colorful illustrations. Reading Level 1-3, Interest Level 2-5.