🥚 ALL ABOUT EGGS
What part of the egg protects the chick and keeps germs out?
Shell
What does it mean to incubate an egg?
To keep it at the proper conditions so it can develop and hatch.
What is a baby chicken called?
Chick
What do scientists use to collect information during an investigation?
Data
Which came first in the incubation process: placing the eggs in the incubator or the chicks hatching?
Placing the eggs in the incubator
What is the yellow part of an egg called?
Yolk
About how long does it take a chicken egg to hatch?
21 days
What develops first—the chick's bones or feathers?
Bones begin developing before feathers.
What instrument did we use to measure temperature?
Thermometer
Which came first: the embryo developing or the chick hatching?
Embryo developing
What part of the egg provides food for the developing chick?
Yolk
Why do we keep the eggs warm in an incubator?
The developing embryo needs the proper temperature to grow.
What organ begins beating early in embryo development?
Heart
If you record the temperature every day, what are you collecting?
Data
Which came first: the egg tooth helping break the shell or the chick leaving the shell?
Egg tooth helping break the shell
What is the clear, jelly-like part surrounding the yolk?
Albumen (egg white)
Why are chicken eggs turned during incubation?
To keep the chicks from sticking to the egg
What does the chick use to break through the shell?
Egg tooth
Why is it important to record incubation information each day?
o monitor conditions and observe changes over time.
Which came first: the fertilized egg or the developing embryo?
Fertilized egg
What tiny spot on the yolk can develop into a chick if the egg is fertilized?
Germinal disc
What could happen if an incubator gets too hot or too cold?
The chicks will not develop and hatch.
What is the process of a chick coming out of its egg called?
Hatching
If our data shows the temperature changed from 99°F to 102°F, what happened?
The temperature increased by 3°F.
A chicken hatches from an egg, and that chicken eventually lays an egg. So which came first—the chicken or the egg? Explain your reasoning using what you learned about reproduction and chicken development.
The egg