TY - BOOK AU - Robert W. Todd et. al. TI - Holt Science and technology: grade 6 SN - 30643619 AV - Q 161.2 .H55 2002 PY - 2002/// CY - New York PB - Holt, Rinehart and Winston, Inc. KW - SCIENCE N1 - Includes index; Unit1. Matter and Motion -- Unit2. A world for energy -- Unit3. Living things -- Unit4. The animal kingdom -- Unit5. Exploring Earth's surface -- Unit6. Earths systems and structure -- Unit7. Beyond our planets N2 - Science is a process of gathering knowledge about the natural world. Asking a question can help you gather knowledge ER -