Activity
Science Buddies

Science Buddies: Too Much of a Good Thing? Effects of Fertilizer on Algal Growth

For Students 3rd - 8th
Algae is a good thing, but too much is a bad thing. In this environmental science fair project, grow algae in several concentrations of fertilizer and observe its effect on algal growth.
Activity
National Health Museum

Access Excellence: Slime Mold Biology Activity

For Teachers 9th - 10th
This site offers instructions for a biology lab involving slime mold. Includes steps for the 5 day procedure and explains how students should evaluate their observations.