Books about Gravitas from Amazon.com

Real Science-4-Kids Chemistry, Level I, written at a 4th and 5th grade reading level, introduces children to college-level chemistry concepts such as the atom and periodic table, molecular bonding and chemical reactions. acid-base reactions, mixtures and separating mixtures, and large molecules such as carbohydrates, polymers and enzymes, and includes a glossary/index..
Price: $18.78 [Notify me when price goes down.]

Real Science-4-Kids Biology, Level I, presents college-level biological concepts at a 4th and 5th grade reading level. Chapters include topics such as taxonomy, the cell, the specialized organelle (the chloroplast), plants, protozoa, frog and butterfly life cycles, ecosystems and cycles..
Price: $18.78 [Notify me when price goes down.]

Real Science-4-Kids Physics, Level I, written at a 4th and 5th grade level, presents college level physics in a way children can understand Concepts included are: Laws of physics and the scientific method; force, work and energy; potential and kinetic energy; motion; chemical and electrical energy; current, magnets and electromagnets; light and sound energy; and conservation of energy..
Price: $16.00 [Notify me when price goes down.]

Real Science-4-Kids Chemistry Pre-Level I introduces young students to college level chemistry subjects, such as atoms, molecules, chemical reactions, acids and bases, mixtures and large molecules such as proteins and DNA. This book is written for young elementary students in grades K-3..
Price: $15.00 [Notify me when price goes down.]

Laboratory Workbook containing 10 experiements (one per chapter) to go along with the Pre-Level Chemistry Student Textbook..
Price: $13.42 [Notify me when price goes down.]

Teacher's Manual for Real Science-4-Kids Pre-Level Chemistry Student Textbook, Grades K-3..
Price: $14.55 [Notify me when price goes down.]