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AP Env. Sci > AP env sci > Flashcards

AP env sci Flashcards

1
Q

Define

Matter

A

Anything that occupies space and has mass

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2
Q

Define

Mass

A

A measurement of the amount of matter an object contains

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3
Q

Define

Atom

A

The smallest particle that can contain the chemical properties of an element

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4
Q

Define

Element

A

A substance composed of atoms that cannot be broken down into smaller simpler components

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5
Q

Define

Periodic Table

A

A chart of all the chemical elements currently known, organized by their properties

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6
Q

Define

Molecule

A

A partical that contains more than one atom

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7
Q

Define

Compound

A

a molecule containing more than one element

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8
Q

Define

Atomic number

A

The number of protons in the nucleus of a particular element

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9
Q

Define

Mass number

A

A measurement of the total number of protons and neutrons in an element

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10
Q

Define

Isotopes

A

Atms of the same element with different numbers of neutrons

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11
Q

Define

Radioactive decay

A

The spontaneous release of material from the nucleus of radioactive isotopes

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12
Q

Define

Half-life

A

The time it takes for one half of an original radioactive parent atom to decay

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13
Q

Define

Covalent bond

A

The bond formed when elements share neutrons

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14
Q

Define

Ionic Bond

A

A chemical bond between two ions of opposite charges

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15
Q

Define

Hydrogen Bond

A

a weak chemical bond that forms when hydrogen atoms that are covalently bonded to one atom are attracted to another atom on another molecule

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16
Q

Define

Polar Molecule

A

A molecule in which one side is more positive and the other side is more negative

17
Q

Define

Surface Tension

A

A property of water that results from the cohesion of water molecules at the surface of a body of water and that creates a sort of skin on the water’s surface

18
Q

Define

Capillary Action(!)

A

A property of water that occurs when adhesion of water molecules to a surface is stronger than cohesion between molecules

19
Q

Define

Acid

A

A substance that contributes hydrogen ions to a solution

20
Q

Define

Base

A

a substance that contributes hydroxide ions to a solution

21
Q

Define

pH

A

The number that indicates the relative strength of acids and bases in a substance

22
Q

Define

Ocean acidification

A

An increase in the acidity of the oceans

23
Q
A

AP Env. Sci (3 decks)

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