All Science Fair Projects

Over 1000 FREE Science Fair Project Ideas!

Project title A comparison on the contamination of wet and dry foodFeatured science projectScience project video
Difficulty Level Middle school
Project page  Click here to view this science project

Description
The objective of this science fair project is to determine the type of food wet or dry food that is most prone to germ contamination. The experiment will be carried out by dropping a slice of cucumber (wet food) and a piece of cheese cracker (dry food) for 20 seconds at various locations.  

Instructions preview
1. The independent variable in this science fair project are the locations where the cheese cracker and cucumber slice were placed – kitchen sink, toilet floor, car porch or garden grass. The dependent variable is the amount of bacterial growth in the Petri dishes, which is determined by counting the number of bacteria colonies. The constants (control variables) are the temperature of the room, the amount of sunlight, and the ingredients used to make the agar in the Petri. 2. Store the eight Petri dishes in a refrigerator. Before the start of the experiment, take the Petri dishes out .....
Search science fair projects Browse science fair projects
Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.
Copyright (C) 2016 All Science Fair Projects.com. All Rights Reserved. Site
All Science Fair Projects Homepage