TY  - BOOK
ED  - Time-Life Books
TI  - Physical forces
SN  - 0809496755
AV  - QC25 .P48 1992
U1  - 530 20
PY  - 1992///
CY  - Alexandria, Va.
PB  - Time-Life
KW  - Physics
KW  - Miscellanea
KW  - Juvenile literature
KW  - Questions and answers
N2  - Questions and answers introduce such physical phenomena as force, motion, magnetism, heat, and sound
ER  -