For my fifth-grade science fair project, I got six chicken eggs in an incubator(孵化器).
"But I don't know anything about hatching an egg. "
Mrs. Brubeck smiled. "You don't have to be an immediate expert at everything, Juli. The idea here is to learn something new. "
"But what if they die?"
"Then they die. Document your work scientifically and you'll still get an A. " She pulled The Beginner's Guide to Raising Chickensfrom her bookshelf and said, "Read the book and set yourself up tonight. "
That night I came home, more worried than ever. I'd read the book. I had to turn the eggs three times a day and regulate the temperature and humidity(湿度). But aside from that, what was there to do?
My father came with a cardboard tube and a flashlight. He taped the two together so that the light beam was forced straight out the tube. "I will show you how to candle the eggs," he said, then switched off the light and held an egg up to the cardboard tube. "The light lets you see through the shell so you can watch the embryo(胚胎) develop. Look, see the dark spot here?"
"Is that an embryo?"
"That's it!"
Suddenly it felt real. The eggs were alive! Surely they had to live!
For the next three weeks, I was completely consumed with the growing of chicks. I labeled the eggs A, B, C, D, E and F, but before long they had names, too: Abby, Bonnie, Clyde, Dexter, Eunice and Florence. Every day I weighed them, candled them, turned them. I drew diagrams of various stages of an embryo's development. I documented the daily changes and weight loss of each egg. On the outside the eggs were boring, but I knew what was happening inside!
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Then one morning I was candling Bonnie when I noticed a gentle peck(啄).
The day came when I was supposed to hand in my science fair project.