Hooked on science: egg geode

March 26, 2016

Egg Geode

INGREDIENTS

12 Eggs
Water
Borax
Food Coloring

INSTRUCTIONS
STEP 1: Crack each egg near the narrow end. Remove the shell near the top of each egg, pour out the contents, and place the eggs back into the carton, so the cracked part of the egg is facing up.

STEP 2: Fill the saucepan ¾ of the way with water, add food coloring, and mix.

STEP 3: Add borax until the water is super saturated with borax.

STEP 4: Once the water starts boiling, pour the contents into each egg, allow the water to evaporate, and observe. Was this process quick or slow compared to events, which occur on Earth? Use several sources to provide evidence that Earth events can occur quickly or slowly.

EXPLANATION
As the water evaporates from the eggs, borax crystals deposit on the inside of the eggs, creating an egg geode. Go to www.hookedonscience.org for more experiments that might get you and your family “Hooked on Science.”