Learn about solids, liquids and gases, properties and changes in matter, and the difference between a mixture and a solution. Then, explore the invisible world of atoms and molecules. Then on to the periodic table of elements, followed by a study of energy. Jam-packed with experiments, reading passages, and activities. Overhead transparencies and answer key included. 60 pages, 6 mini posters. Grades 5-8; Reading Level 3-4.