The Great Plant Escape Case #1 - In Search of Green Life http://www.urbanext.uiuc.edu/gpe/case1/case1.html
Plants in Motion http://sunflower.bio.indiana.edu/~rhangart/plantmotion/flowers/flower.html
Scilinks - NSTA approved weblinks. Enter as "guest" and "Submit", then enter code #HSTL280 (Plant Characteristics), HSTL285 (How are plants classified?); HSTL290 (Seedless Plants); HSTL295 (Plants with Seeds); HSTL300 (The Structure of Seed Plants); HSTL305 (Reproduction of Plants); HSTL310 (Photosynthesis); HSTL315 (Plant Tropisms); HSTL320 (Plant Growth) http://www.scilinks.org
Botany Science Fair Experiments http://www.all-science-fair-projects.com/category50.html
Science Fair Experiments - Intermediate (look for Botany/Biology section) http://www.scienceproject.com/projects/index/intermed.asp
Plant Projects - Middle School http://www.juliantrubin.com/plantprojects.html#middle
Steps to Preparing a Science Fair Experiment http://www.twingroves.district96.k12.il.us/ScienceInternet/StepsToPrepare.html
The Parts of a Flower Powerpoint Slide Show http://www.pembschool.org.uk/ppts/The%20Parts%20of%20a%20Flower.ppt
Find the Identity of a Mystery Tree! http://oregonstate.edu/trees/mt/index.html
Battlefield Middle School science fair projects http://www.spotsylvania.k12.va.us/bms/hypos.htm#B8
Plant parts - hangman http://www.quia.com/hm/189048.html
Plant parts concentration, word search, matching http://www.quia.com/jg/614504.html