5.4 - Research Projects

Think of your own variants on the experiments of this unit. Following are a few ideas to get your mind going.

Bacterial Colonies

Vary the agar concentration of the gel. Try 15 g/l (a harder gel), and 7 g/l (a softer gel). What effect would you predict gel concentration will have on the colony pattern? Is your reasoning affected by questions of nutrient diffusion or bacterial mobility?

Make a photo display showing colony shapes as they change with gel and nutrient concentrations.

Termite Colonies

Root Growth

Previous: HandsOn 17 - Growing Roots
Next: Unit 6- Diffusion