Science behind our Experiments
Humans have warm blood, and so do chickens. Animals that are warm-blooded need a warm environment to survive. In order for embryo's to grow they must be kept in 37.5 degrees Celsius. However, for our experiment we put the eggs in different tempetuares. Some of the eggs are kept in 39.95 degrees Celsius, some were kept in the normal tempeture, and the other eggs were kept in the light. The science behind our experiment was to see how different environments/ tempetures affect the egg. We have not yet finished our experiment because it takes 21 days for chickens to hatch. We will know our results in 20 days. However we have been able to see which eggs are dead and which are alive thanks to a process called candeling. We hold the eggs to a light, and we get to see the shadow of the eggs.
Exhibit Text
Caption 1:(day 4) The fertilized chicken egg has been laid and inside it there is an embryo. The embryo is only a tiny living organism, waiting to develop.
Caption 2:(day 10) The embryo’s heart has formed, and the eyes and legs are starting to develop. Feathers begin to appear, and a pocket of air forms in the shell.
Caption 3:(day 16) The embryo’s scales, claws, and beak become firm. By this time the embryo begins to rely on air in order to survive. The embryo will turn its beak towards the air cell in order for it to get the air it needs.
Caption 4: The embryo is now using the air cell to breathe, and the embryo occupies all of the egg (except for the air cell). The neck then begins to spasm, and the chick's beak pokes the egg shell, exhausted and wet. The chick has finally hatched.
Instructions:
1) Read the caption.
2) Turn the knob to match the caption with the picture. If you have correctly matched the caption with the picture, the bulb will light up.
Caption 2:(day 10) The embryo’s heart has formed, and the eyes and legs are starting to develop. Feathers begin to appear, and a pocket of air forms in the shell.
Caption 3:(day 16) The embryo’s scales, claws, and beak become firm. By this time the embryo begins to rely on air in order to survive. The embryo will turn its beak towards the air cell in order for it to get the air it needs.
Caption 4: The embryo is now using the air cell to breathe, and the embryo occupies all of the egg (except for the air cell). The neck then begins to spasm, and the chick's beak pokes the egg shell, exhausted and wet. The chick has finally hatched.
Instructions:
1) Read the caption.
2) Turn the knob to match the caption with the picture. If you have correctly matched the caption with the picture, the bulb will light up.