TY  - BOOK
AU  - Schneider,Herman
TI  - How scientists find out: about matter, time, space, energy 
SN  - 0070554471
PY  - 1976///
CY  - New York
PB  - McGraw-Hill
KW  - Science
KW  - Juvenile literature
N1  - Discusses the scientific investigations of matter, time, space, and energy with suggested experiments for further exploration; Includes bibliogr. references (p. 123-125) and index
ER  -