Physical Science Vocabulary

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Vocabulary flashcards covering key physical science terms from the lesson.

9 Terms

1
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Law of Conservation of Mass

States that matter/mass cannot be created or destroyed.

2
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Valence Electrons

Outer shell electrons.

3
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Molecule

2 or more atoms combined together.

4
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Atom

Smallest part of matter.

5
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Electron

Subatomic particle with negative charge; located outside the nucleus.

6
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Nucleus

The center of the atom.

7
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Atomic Number

The number of protons/electrons in an atoms; usually located at the top of an element tile.

8
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Mixture

2 or more elements and/or compounds physically combined.

9
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Homogeneous Mixture

A mixture that looks the same throughout; cannot see the different pieces in the mixture.