3.4. References http://www.ck12.org
- Log: Alex Murphy (Flickr: APM Alex); Braiding hair: Steven Depolo; Can: James Mackintosh Photography
; Arch: Frank Kovalchek; Candy: Image copyright Anteromite, 2013. Log: http://www.flickr.com/photo
s/28misguidedsouls/5128954613/; Braiding hair: http://www.flickr.com/photos/stevendepolo/4886397967/;
Can: http://www.flickr.com/photos/59207552@N08/8565955392/; Arch: http://www.flickr.com/photos/722
13316@N00/5242351183/; Candy: http://www.shutterstock.com. Log, Braiding hair, Can, Arch: CC BY
2.0; Candy: Used under license from Shutterstock.com - davidd (Flickr:puuikibeach). http://www.flickr.com/photos/puuikibeach/3446802774/. CC BY 2.0
- Leaves: Kenny Louie (Flickr:kennymatic); Eggs: Image copyright Fotografas Edgaras, 2013; Pennies: F
Delventhal (Flickr:krossbow); Fire: Dawn Huczek. Leaves: http://www.flickr.com/photos/kwl/6282684630/
; Eggs: http://www.shutterstock.com; Pennies: http://www.flickr.com/photos/krossbow/4252686414/; Fire: h
ttp://www.flickr.com/photos/31064702@N05/3810662879/. Leaves: CC BY 2.0; Eggs: Used under licenses
from Shutterstock.com; Pennies: CC BY 2.0; Fire: CC BY 2.0 - Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0