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7th & 8th Grade Physical & Chemical Changes

Across
The measure of the average of kinetic energy of particles in a substance
Energy produced when the bonds of chemicals break
Energy that is generated to produce light
Just like energy, mass is neither created nor destroyed
Energy that is stored based upon position of an object
The sum of potential energy + kinetic energy
Energy of movement
Thermal energy
Down
A change in state of matter that doesn't change the nature of the substance. Example: Ice to liquid
Changes that happen to change a substance into another substance. Example: Nail to Rusted Nail
Properties of a substance that include solubility, thermal/electrical conductivity, melting point, boiling point, color, density, viscosity
Energy that produces sound