1. Physical Property
A characteristic of a substance that can be observed without changing the substance into something else
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2. Physical Change
A change that alters the form of appearance of a substance, but does not make the material into another substance
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3. Chemical Property
A characteristic that is observed when a substance interacts with another substance.
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4. Chemical Change A change in matter that produces a new substance
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5. Mass
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6. Volume

7. Density
Density= Mass/Volume

8. Metals
a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity (e.g., iron, gold, silver, copper, and aluminum, and alloys such as brass and steel).

9. Nonmetals
Any of a number of elements, such as oxygen or sulfur, that lack the physical and chemical properties of metals.

10. Metalloids
an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. They are electrical semiconductors.

11. Malleable
able to be hammered or pressed permanently out of shape without breaking or cracking

12. Luster
the state or quality of shining by reflecting light

13. ductile
able to be drawn out into a thin wire.

18. Forms of Energy Potential Energy Kinetic Energy Chemical Energy
Nuclear Energy
Stored Mechanical Energy
Gravitational Energy
Kinetic Energy
Radiant Energy
Thermal Energy
Motion Energy
Sound Energy
Electrical Energy