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Topics > Biology > Zoology

	Project title	Digestion and cat food
	Difficulty Level	Middle school
	Project page	Click here to view this science project
Description
This science fair project was performed to examine how much of the cat food eaten by the feline is actually digested and absorbed. The tests were done using 4 brands of cat food – IAMS, Friskies, Pet Promise and Nutro Natural Dry.
Instructions preview
1. For this science fair project, the independent variable is the brand of cat food (IAMS, Friskies, Pet Promise and Nutro Natural Dry). The dependent variable is the amount of food that is digested by the cat. The constants (control variables) are the amount of cat food that the cat is fed, the pH level of hydrochloric acid, the amount of acid used, and the amount of meat tenderizer used. 2. Label the4 beakers according to the cat food brands: IAMS, Friskies, Pet Promise and Nutro Natural Dry. 3. Pour hydrochloric acid into a larger beaker and mix it .....

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