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Science > Matter > Flashcards

Matter Flashcards

1
Q

Matter

A

Anything with mass and volumes
(Solid, liquid, gas, plasma)

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2
Q

Volume

A

Amount of space taken up

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3
Q

Mass

A

The amount of matter contained in an object; measured in grams or ounces; never changes

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4
Q

Elements

A

Pure substance that cannot be broken down into another substance; contains only 1 type of atom; has own characteristics/properties

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5
Q

Compounds

A

Pure substance made of 2 or more elements chemically combined; always a specific ratio; has own characteristics; broken down by chemical change

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6
Q

Mixture

A

2 or more substances not chemically combined

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7
Q

Homogenous mixture

A

Contents are spread out evenly

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8
Q

Heterogenous mixture

A

Contents are not spread out evenly

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9
Q

Use a magnet

A

Can separate mixtures

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10
Q

Centrifuge (density)

A

Way to separate a mixture

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11
Q

Distillation (boiling points)

A

Way to separate a mixture

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12
Q

Filtering

A

Way to separate a mixture

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13
Q

Ductility

A

Ability to be pulled into a wire

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14
Q

Malleability

A

Ability to be rolled into thin sheets

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15
Q

Thermal conductivity

A

How a material absorbs heat

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16
Q

Physical properties

A

Characteristics that can be observed; describes the objects

17
Q

Examples of physical properties

A

Color
State/phase
Density
Size/shape
Solubility

18
Q

Solvent

A

Does the dissolving

19
Q

Solute

A

Is being dissolved

20
Q

Chemical property

A

Characteristic that describes how it can react or change

21
Q

Chemical property examples

A

Reactivity - acid base
Oxidation - O2
Flammability - burns easily
Combustibility - can catch fire or explode

22
Q

Physical Change

A

Only changes the appearance of the substance

23
Q

Examples of physical change

A

Dissolve
Change state
Change shape or size
Mixing together

24
Q

Chemical change

A

Substance reacts and turns into a new substance with different properties *old substance is no longer there

25
Q

Examples of chemical change

A

Burning
Chemical reaction
Digesting food
Rusting
Souring milk
Cooking

26
Q

Signs of a chemical change

A

Gas bubbles produced
Heat given off
Odor changes
Light or sound produced
Color changes
Forms precipitate

27
Q

Weight

A

The force of gravity on an object’s mass; changes with gravitational pull; measured in Newtons and pounds

28
Q

Density

A

Determines an objects ability to sink or float (mass/volume = density)

29
Q

Chemical Formula

A

Shows the composition of the elements making up a compound

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