Easy to Use, Easy to Understand! The Understanding Science series presents difficult scientific concepts in an easy to understand and entertaining format. Core curriculum for Life Science, Earth Science and Physical Sciences. Demonstrations include easy to understand experiments that are highly appropriate for classroom environments. Lab safety procedures are also presented throughout each program. Designed for early achievers and 5th through 9th grade students as well as for high school remedial education. Contains core curriculum material. The subject matter of the series originated from intensive discussion with members of the NSTA, The National Middle School Science Teachers Association, The National Center for improving Science Education, and other professionals directly concerned with science education. Teachers guide includes teaching strategy materials as well as student glossaries of the scientific terminology used in each volume.