fairfolio
Saved Projects

How to Reduce Bacteria on a Sponge

CSEF · 2007 Microbiology

Zoe M.F. Brier · Santa Barbara Junior High School, Santa Barbara, Santa Barbara County

Overview

Objectives/Goals My objective was to find out if time in a microwave affects the amount of bacteria on a sponge. My hypothesis was if a sponge is put in a microwave for a longer amount of time, then more bacteria will be killed. Methods/Materials My main materials were sponges, a microwave, agar, and agar dishes. I heated up the sponges in the microwave and tested the amount of bacteria on them with agar and agar dishes. Results My results were that more bacteria was killed if I put the sponge in the micorwave for longer, just like I hypothesized. I realized that putting the sponge in the microwave for two minutes really reduced a lot of bacteria. Conclusions/Discussion My hypothesis was correct. This proves that bacteria can be killed off on a sponge if put in the microwave. In the future, I would do research about what kinds of bacteria there were and if the microwave killed off only some types.

Summary statement

My project was done to find out if a microwave oven reduced bacteria on a sponge.

Help received

Mother helped boil agar.

Competition history

  • CSEF 2007 Microbiology · Entry J1405

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Source: California Science & Engineering Fair public projects

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google