Connecticut Prekindergarten – Grade 8
Curriculum Standards and Assessment
Expectations –Science
PK.2.a. Use the senses and simple tools to make
observations of characteristics and behaviors of
living and nonliving things.

MATERIALS children’s books about eggs and egg-producing
animals, such as Animal Eggs by Dawn Cusick
and Joanne O’Sullivan, Guess What Is Growing
Inside This Egg by Mia Posada, and Chickens Aren’t
the Only Ones by Ruth Heller
egg for each child to crack
1 tablespoon milk per child
whisk or handheld eggbeater
hot plate or electric skillet
Many animal species, including birds, reptiles,
amphibians, fish, insects, and some mammals,
lay eggs to reproduce. The eggs of reptiles and
birds, including chickens, have three main parts:
an outer protective shell; a clear liquid albumin,
commonly referred to as egg white; and a yolk,
contained within a thin membrane. Many fish
(although not all) lay eggs, which are called roe.

Most fish lay many eggs at a time, with the carp
Eggs are a major food source throughout the
world. Cooking eggs causes permanent and irre-
versible changes to the protein and is therefore a
chemical change.

IMPLEMENTATION 1. Most children are familiar with chicken eggs
but do not know that other types of animals
also produce eggs. Sharing children’s books
about eggs helps them understand the sim-
ilarities and differences among the eggs of
various species of animals.

2. The cooking portion of the activity works best
with small groups of children. Each child at
the table can crack an egg, remove any pieces
of shell, and discuss what they find inside the
egg. several small bowls with high sides
commonly laying 300,000 in a single spawn.

Reptiles lay eggs that are rubbery. The hatchlings
use a special egg tooth to help break through the
shell. 3. Children then use either a whisk or a hand-
cranked eggbeater to mix the eggs and milk.

These tools are simple machines and there-
fore integrate physics into the activity (see
chapter 5).

4. As the adult cooks the eggs, the children
should be encouraged to observe the changes
that are occurring in the eggs.

5. The final step is eating the scrambled eggs.