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Unit 2 Vocabulary

Across
A combination of two or more substances where each of the substances keeps its own physical properties. No new substances are formed.
shorthand method of representing an element
Descriptions of matter.
When matter is made up of all of the same kind of element or molecule.
Property of matter that becomes clear during a chemical reaction.
A material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity
Heat energy contained within the earth
Energy that is released from unstable elements.
Evidence of a chemical reaction: the absorption of heat
each of more than one hundred substances that cannot be broken down into simpler substances
Organic matter used as fuel to generate electricity
Energy generated from converting sunlight to electricity.
Down
When a new solid forms as a result of a chemical reaction.
a process that involves rearrangement of the atoms in a substance
Energy from the movement of water
a thing that is composed of two or more separate elements
occurs when a substance combines with another to form a new substance
Energy generated from the spinning of turbines by the movement of air.
A mixture where each substance retains its own physical properties.
An arrangement of all the known elements.
How a metal or mineral reflects light
Evidence of a chemical reaction: the release of heat
Energy generated by the movement of tiny particles within an object
able to be hammered or flattened in a press
An element that has properties that are completely different from metals.
The basic building blocks of all matter. These come together to form compounds.