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Science > Physical science Chapter 1 > Flashcards

Physical science Chapter 1 Flashcards

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1
Q

Matter

A

Anything that mass and takes up space

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2
Q

Anything that has mass and takes up space

A

Matter

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3
Q

The study of matter and how matter changes

A

Chemistry

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4
Q

Single kind of matter that is pure meaning it always ha stage came composition

A

Substance

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5
Q

What properties describe matter

A

Physical and chemical properties

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6
Q

Physical properties

A

Characteristics of a substance that can be observed without changing it into another substance

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7
Q

Characteristics of a substance that describes its ability to change into different substances

A

Chemical properties

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8
Q

Examples of physical properties

A

Melting, freezing, dissolving, color, size

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9
Q

What type of property is flammability

A

Chemical property bc it describes an ability to turn into a different substance
Paper+fire–> ash

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10
Q

What is matter made of?

A

All matter is made up of over 100 substances called elements

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11
Q

Substance that can not be broken down into other substances by chemical or physical means

A

Elements

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12
Q

How can you tell one element from another?

A

Each element can be identified by its specific physical and chemical property

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13
Q

Basic particle from which all elements are made

A

Atom

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14
Q

Force of attraction between two or more atoms

A

Chemical bonds

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15
Q

Group of two or more atoms held together by chemical bonds

A

Molecule

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16
Q

Substance made of two or more elements that are chemically combined in a set ratio

A

Compound

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17
Q

Shows the elements in the compound and the ratio of atoms

A

Chemical formula

18
Q

When elements combine they form compounds with the same or different properties from the elements it came from

A

When elements combine Different properties are formed then the ones that each element had before

19
Q

What are the types of mixtures

A

Heterogeneous or homogeneous

20
Q

Made of two or more substances that are together in the same place but their atoms are not chemically bonded

A

Mixture

21
Q

Heterogeneous mixture

A

Mixture in which u can visibly see the parts of the mixture and is separable

22
Q

Homogeneous

A

Mix so evenly different parts are not seen

23
Q

Methods of separating mixture

A

Distillation evaporation filtration and magnetic attraction

24
Q

Measure of the force of gravity

A

Weight

25
Q

The amount of matter in an object

A

Mass

26
Q

To measure the properties of matter scientist use a system called

A

International system of units

27
Q

SI unit of mass

A

Kilogram

28
Q

Amount of space that matter occupies

A

Volume

29
Q

How do you calculate volume

A

Length x Width x height

30
Q

Measure of the mass of a material in a given volume

A

Density

31
Q

How do you calculate density

A

Mass/volume

32
Q

Objects with greater densities than water will sink

A

Objects with lesser densities will float

33
Q

Alters the form or appearance of matter or appearance of matter but does not turn any substance in the matter into a different substance

A

Physical change

34
Q

What happens to a substance in a physical change

A

A substance that that undergoes a physical change is still the same substance after the change

35
Q

Chemical change

A

Change in matter that produces one or more new substances

36
Q

Law of conservation of mass

A

Matter can not be created or destroyed

37
Q

How are changes in energy and matter related?

A

Every Chemical and physical change in the matter includes a change in energy

38
Q

Measure of how hot or cold something is

A

Temperature

39
Q

Total energy of motion of all the particles in an object

A

Thermal energy

40
Q

Change in which energy is absorbed

A

Endothermic change

41
Q

A change in which energy is released

A

Exothermic change

42
Q

Energy stored in the chemical bonds between atoms

A

Chemical energy

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