PURPOSE:
The purpose of this project is to determine whether different brands of caged or free-range hen eggs have stronger shells. This project will prove whether caged or free-range hen eggshells are stronger.
HYPOTHESIS:
My hypothesis for this project is that free-range hen eggshells, in all of different brands are stronger than caged hen eggshells. I choose free-range eggshells, because their diet and lifestyle would be different from caged eggs.
EQUIPMENT: * 24 Free-range hen eggs (3 different brands) * 24 Caged hen eggs (3 different brands) * 5 identical bottle lids * 1 wooden plate * Weights (I will be using canned soup, corn, books) * 1 Scale * 1 Timer * 1 30cm ruler * 1 stool * 1 table
VARIABLES:
Independent Variable: Egg brand, egg shell thickness, egg shell strength, egg size
Dependent Variable: The time it takes for the egg shell to crack.
Variables you need to keep constant: The weights I’m putting onto the eggs, the lengths the eggs are away from each other.
CONTROL:
The control of my project would be the egg brand, because I would compare the results of each brand with one another.
METHOD:
Before the experiment: Conduct this quick experiment to get a background understanding, as well as to back your final experiment and report up. 1. Crack 2 free-range, and caged-eggs. 2. Compare the egg shells, and the rigid lines of the crack. Take notes on it. 3. Initiate on working on the actual experiment.
Actual experiment: 1. Measure all the weights, wooden tray (only one, the tray on the bottom does not count) and eggs first. 2. Put a stool on the ground (on top of a table), and then lay 5 bottle lids on top of it, to form a square shape. Make sure you measure the lids, so that they are 7.5 cm apart. 3. Put 5 eggs vertically on top of the lids. 4. Put another wooden tray on top of the lids. 5. Carefully stack