All Science Fair Projects

Over 500 FREE Science Fair Project Ideas!

Search Browse Forum Coach Links Editor Help Tell-a-Friend Encyclopedia Dictionary

Top 20 Science Project Searches

Science Fair Coach
What do science fair judges look out for?

Topics > Biochemistry > Molecular Biology

	Project title	Examining the effect of temperature on bacteria
	Difficulty Level	High school
	Project page	Click here to view this science project
Description
The objective of this science fair project is to investigate the effect of hot and freezing conditions on the survival of bacteria. The experiment will be carried out by placing E Coli, Streptococcus and Bacillus bacteria at -78 degrees Celsius, 0 degrees Celsius, 25 degrees Celsius, 60 degrees Celsius and 100 degrees Celsius
Instructions preview
1. The independent variables in this science fair project are the temperature and species of bacteria - E Coli, Streptococcus or Bacillus. The dependent variable is the size of bacteria growth after five days, which is determined by measuring the size of bacterial growth with a ruler. The constants (control variables) are the temperature of the room, amount of sunlight, and agar preparation of the Petri dishes. 2. Store the 15 Petri dishes prepared using the agar in a refrigerator. Before the start of the experiment, take the 15 Petri dishes out of the refrigerator and allow them to .....

View our all-time most popular science projects

You might also like these projects

Kits for your science fair projects Science fair book Science kit search tool

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.