TY  - BOOK
AU  - RILEY,Peter
TI  - Essential Science : LIght & Seeing
SN  - 978 0 7496 9603 0
U1  - 535.3 
PY  - 2010///
CY  - Sidney
PB  - Franklin Watts
KW  - 0
KW  - Grade 7-9
N2  - Wher does light come from? Why can't we see in the dark? Why do we have shadows? This book answers all these questions and more through: factual information and practical investigation etc
ER  -