TY  - BOOK
AU  - Currie , Stephen
TI  - Ecosystems
T2  - 	21st century skills library., Real world science
SN  - 9781602794580
U1  - 577 
PY  - 2009///
CY  - USA .
PB  - Cherry Lake Publishing
KW  -  Biotic communities
KW  - JUVENILE NONFICTION -- Science & Nature -- Earth Sciences -- General
N2  - The Hands on Science series provides students with background on key concepts in Science. Each title includes engaging hands on exercises that bring the concepts to life for kids. Real World Science: Ecosystems, examine and define what are ecosystems, how living things get energy in an ecosystem, competing and surviving in an ecosystem, and extinction and its causes
ER  -