Physical science Chapter 1

Question 1

Matter

Answer 1

Anything that mass and takes up space

Question 2

Anything that has mass and takes up space

Answer 2

Matter

Question 3

The study of matter and how matter changes

Answer 3

Chemistry

Question 4

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

Answer 4

Substance

Question 5

What properties describe matter

Answer 5

Physical and chemical properties

Question 6

Physical properties

Answer 6

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

Question 7

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

Answer 7

Chemical properties

Question 8

Examples of physical properties

Answer 8

Melting, freezing, dissolving, color, size

Question 9

What type of property is flammability

Answer 9

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

Question 10

What is matter made of?

Answer 10

All matter is made up of over 100 substances called elements

Question 11

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

Answer 11

Elements

Question 12

How can you tell one element from another?

Answer 12

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

Question 13

Basic particle from which all elements are made

Answer 13

Atom

Question 14

Force of attraction between two or more atoms

Answer 14

Chemical bonds

Question 15

Group of two or more atoms held together by chemical bonds

Answer 15

Molecule

Question 16

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

Answer 16

Compound

Question 17

Shows the elements in the compound and the ratio of atoms

Answer 17

Chemical formula

Question 18

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

Answer 18

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

Question 19

What are the types of mixtures

Answer 19

Heterogeneous or homogeneous

Question 20

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

Answer 20

Mixture

Question 21

Heterogeneous mixture

Answer 21

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

Question 22

Homogeneous

Answer 22

Mix so evenly different parts are not seen

Question 23

Methods of separating mixture

Answer 23

Distillation evaporation filtration and magnetic attraction

Question 24

Measure of the force of gravity

Answer 24

Weight

Question 25

The amount of matter in an object

Answer 25

Mass

Question 26

To measure the properties of matter scientist use a system called

Answer 26

International system of units

Question 27

SI unit of mass

Answer 27

Kilogram

Question 28

Amount of space that matter occupies

Answer 28

Volume

Question 29

How do you calculate volume

Answer 29

Length x Width x height

Question 30

Measure of the mass of a material in a given volume

Answer 30

Density

Question 31

How do you calculate density

Answer 31

Mass/volume

Question 32

Objects with greater densities than water will sink

Answer 32

Objects with lesser densities will float

Question 33

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

Answer 33

Physical change

Question 34

What happens to a substance in a physical change

Answer 34

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

Question 35

Chemical change

Answer 35

Change in matter that produces one or more new substances

Question 36

Law of conservation of mass

Answer 36

Matter can not be created or destroyed

Question 37

How are changes in energy and matter related?

Answer 37

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

Question 38

Measure of how hot or cold something is

Answer 38

Temperature

Question 39

Total energy of motion of all the particles in an object

Answer 39

Thermal energy

Question 40

Change in which energy is absorbed

Answer 40

Endothermic change

Question 41

A change in which energy is released

Answer 41

Exothermic change

Question 42

Energy stored in the chemical bonds between atoms

Answer 42

Chemical energy