Balance of Nature
Plants and animals depend on each other to survive.
Things in Nature
organisms-
animals
beach
cave
desert
field
flower
grass
island
lake
leaf
mountains
moon
ocean
rivers
roots
rocks
solarsystem
star
tree
waterfall
http://library.thinkquest.org/08aug/00473/balancenature.html
http://www.youtube.com/watch?v=pbf1x7FL6i0
http://wwf.panda.org/about_our_earth/teacher_resources/webfieldtrips/ecological_balance/
http://www.bookrags.com/questions/science/Nature/why-is-it-important-to-maintain-the-balance-of-nature--166002/
http://www.general-paper.com/2012/01/how-important-is-it-to-preserve-balance.html
Song
http://www.kidsgeo.com/geography-for-kids/0156-cycles-balance-life.php