What came first? The chicken or the egg? No one really knows for sure but the one thing we do know is that this is a favourite amongst the children. So what are we waiting for? Let's get cracking!
During this session the children learn all about chickens and egg production and the children have the opportunity to hold and touch a baby chick.
|Here the children are watching the incubator where the
baby chicks are hatching and in the background the children enjoy the
opportunity to hold and touch the baby chicks.
Want to know some facts about Chickens?
|In this picture although it may be difficult to see the children are
learning all about baby chickens or chicks, and what they are fed.
More Chicken Facts:
|Even More Chicken Facts:
|Want to Listen to the sounds a chicken makes?|
|Description of Egg Parts:
SHELL Bumpy and grainy in texture, an eggshell is covered with as many as 17,000 tiny pores. Eggshell is made almost entirely of calcium carbonate (CaCO3) crystals. It is a semi permeable membrane, which means that air and moisture can pass through its pores. The shell also has a thin outermost coating called the bloom or cuticle that helps keep out bacteria and dust.
INNER AND OUTER MEMBRANES Lying between the eggshell and egg white, these two transparent protein membranes provide efficient defence against bacterial invasion. If you give these layers a tug, you’ll find they’re surprisingly strong. They’re made partly of keratin, a protein that’s also in human hair.
AIR CELL An air space forms when the contents of the egg cool and contract after the egg is laid. The air cell usually rests between the outer and inner membranes at the egg’s larger end, and it accounts for the crater you often see at the end of a hard-cooked egg. The air cell grows larger as an egg ages.
ALBUMEN The egg white is known as the albumen, which comes
from albus, the Latin word for “white.” Four alternating layers of thick
and thin albumen contain approximately 40 different proteins, the main
components of the egg white in addition to water.
Descriptive information taken from the Exploratorium website
Useful links about Chickens:
Check out the following links:
Useful links about Eggs:
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