Activity 1: Observing Cells
Activity 2: From Prokaryotes to Eukaryotes
Activity 3: On Being the Right Size
Activity 4: Getting Small

Science on the Internet

Largest and Smallest Cells
Mad Scientist Network - What is the largest and smallest cell in the human body?
Mad Scientist Network - What is the smallest living thing?
Ask the Scientist - Largest living cell

HIV, Ebola, and Other Virii
Wikipedia - HIV
Center for Disease Control and Prevention (CDC) - Ebola Virus
How Stuff Works - How Viruses Work

Nanobacteria and Martian Meteorite
Wikipedia - Nanobacteria
Nanobes - Images and Links
Mississippi State - Nanobacteria
Astrobiology Magazine - Small World