Watch this video and complete the Viewing Guide.
Source: CET, The Cincinnati Zoo and Botannical Garden, ThinkTV http://youatthezoo.org/
Read the article, watch this video, answer the questions.
BEAVER VIDEO: http://opb.pbslearningmedia.org/resource/tdc02.sci.life.colt.beaver/beavers/
Source: ©2003 WGBH Educational Foundation. All rights reserved.
PHOTOSYNTHESIS VIDEO: (*Watch this, no quiz or viewing guide)
http://opb.pbslearningmedia.org/resource/tdc02.sci.life.stru.photosynth/photosynthesis/
PHOTOSYNTHESIS ACTIVITY:
http://opb.pbslearningmedia.org/resource/tdc02.sci.life.stru.methusweb/illuminating-photosynthesis/
Source: © 2002 WGBH Educational Foundation. All rights reserved. Adapted from NOVA: "Earth." Produced by WGBH in cooperation with NASA. Third party materials courtesy of BBC and Canadian Broadcast Corporation.