TY - BOOK TI - The Grolier science encyclopedia SN - 0753405660 U1 - 503 PY - 2000///] CY - Connecticut : PB - Grolier KW - Science -- Encyclopedias KW - Science -- Juvenile literature KW - lcgft N1 - v. 1. Planet earth.-- v. 2. Living things.-- v. 3. Human biology.-- v. 4. Chemistry and the elements.-- v. 5. Materials and technology.-- v. 6. Light and energy.-- v. 7. Forces and movement.-- v. 8. Electricity and electronics.-- v. 9. Space and time.-- v. 10. Conservation and the environment ER -