Activity
PBS

Nova Online: Life's Greatest Miracle

For Students 9th - 10th
The miracle of life is featured in this wonderful series of short videos and journal entries. A variety of topics are covered in this well written, authoritative piece.
Handout
University of Arizona

University of Arizona: Puntas De Raiz De Cebolla Online

For Students 9th - 10th
In this activity you will be able to classify and count the cells from the tip of an onion root into the appropriate phases of the cell cycle. You can use your count to predict the time a dividing cell spends in each phase.
Graphic
Curated OER

Cell Biology: Online Onion Root Tips

For Students 9th - 10th
Online mitosis activity offers the student the opportunity to identify, classify, calculate, and graph the phases of mitosis. Explanations of each phase, actual cells are displayed for classifing and gathering data in this comprehensive...