The Standards and
Consumer Services of the New Mexico Ministry of
Agriculture provides egg and dairy product inspection
and offers valuable insight into the world of food
inspection.
This egg is cracked!
Carrying on a tradition started by President Rutherford B. Hayes in 1878, children roll hard-boiled eggs across the South Lawn during the annual White House Easter Egg Roll Monday, April 21, 2003. In honor of America's service personnel, the festivities this year were open to U.S. military families.
Local artists created the decorated eggs, which represent each state and the District of Columbia. The 2002 Easter Egg Collection continues the tradition that began in 1994 where each state sends a decorated egg to the White House for display. The display includes a painted cracked egg representing Virginia and the Sept. 11 attack on the Pentagon. The collection is coordinated by the American Egg Board. See more Decorated Eggs Representing Each State
In this experiment, taken from Earthquake Games,
students use eggs to simulate the motion of Earth's
plates.
You will need:
A hard-boiled egg for each student
Paper towels
Chart paper for writing observations
Markers
Procedure
1. Read a short nonfiction piece about the
layers of Earth (core, mantle, crust).
2. Make comparisons between a hard-boiled egg
and the Earth (core-yolk, mantle-white, crust-shell).
3. Introduce the concept of tectonic plates,
then instruct students to lightly crack their egg
shells until they have some small and some large
"plates".
4. Discuss movement of tectonic plates due to
forces within Earth.
5. Demonstrate how students can use their
thumbs to create pushing, pulling, and sliding forces
with their egg shell. Give them time to try out these
forces.
6. On chart paper, list some of the results
reported by students. Then ask them to describe Earth
landforms that are similar in shape to what they saw
with their eggs. Make sure to cover mountain
formation, subduction (one plate sliding over
another), and the breaking away of pieces caused by
friction.
Fun Observations
When I boiled eggs for my class, I boiled some
a bit too vigorously and a few cracked open. I showed
these to my class and they were excited to predict
why this happened. They came to the conclusion that
these eggs were hotter than the others, producing
more pressure than the shells could withstand. They
especially enjoyed examining an egg that had burst
open and had cooked egg white mounded in a very
volcano-like eruption!
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