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In the Diving Eggs Inertia Challenge and Newton's First Law Demonstration Kit for physical science and physics, present a dramatic demonstration of Newton's law of inertia by dropping three eggs into beakers of water.

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Students experience the effects of inertia every day—riding in a car, playing sports, even picking up their backpacks. Present a more dramatic demonstration of Newton’s law of inertia by safely and simultaneously dropping three eggs into beakers of water, without touching the eggs! Three weighted plastic eggs are balanced on tall plastic cylinders in an aluminum pan that rests on top of three beakers of water. A quick blow to the side of the pan sets the system in motion—but the heavier eggs with their greater inertia simply drop into the beakers of water. Performed either as an introduction to Newton’s First Law of Motion or as a “grand finale” at the end of a force and motion unit . . . applause is guaranteed!

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Asking questions and defining problems
Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data

Disciplinary Core Ideas

MS-PS2.A: Forces and Motion
HS-PS2.A: Forces and Motion

Crosscutting Concepts

Cause and effect
Systems and system models

Performance Expectations

HS-PS1-4: Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.
HS-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
HS-PS1-2: Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
MS-PS1-2: Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.