Intro Chemistry&physics - Chapter 3

Front 1

Matter

Back 1

anything that has mass and volume.

Front 2

Mass

Back 2

amount of matter in a substance or object.

Front 3

Weight

Back 3

a measure of the force of gravity pulling on an object.

Front 4

newton (N)

Back 4

SI unit for weight

Front 5

Volume

Back 5

amount of space matter takes up

Front 6

Physical properties of matter

Back 6

properties that can be measured or observed without matter changing to a different substance

Front 7

Density

Back 7

an important physical property of matter. Reflects how closely packed the particles of matter are.

Front 8

How do you calculate density?

Back 8

the amount of mass in a given volume of matter

Front 9

Formula for Density

Back 9

Mass (M)

Density (D) = ___________

Volume (V)

Front 10

Chemical properties

Back 10

properties of matter that can be measured or observed only when matter undergoes a change to become an entirely different substance.

Front 11

Examples of chemical properties

Back 11

Includes: flammability & reactivity

Front 12

flammability

Back 12

ability of matter to burn

Front 13

reactivity

Back 13

ability of matter to combine chemically with other substances

Front 14

Describe the placement method for measuring the volume of an object

Back 14

1. Ad water to a measuring container. Record volume of the water.

2.Place object in water. Measure the volume of the water.

3.Subtract first volume measurement from the second to get the volume of the object.

Front 15

four states of matter

Back 15

solid, liquid, gas & plasma

Front 16

Why does oil float on water?

Back 16

oil has a lower density than water

Front 17

Examples of physical properties of matter

Back 17

Hardness, freezing point, boiling point, ability to conduct heat, ability to conduct electricity, ability to dissolve in other substances, flammability, reactivty

Front 18

Element

Back 18

pure substance that cannot be separated into other substances.

Front 19

atom

Back 19

smallest particle of an element that still has the elements's properties

Front 20

compound

Back 20

unique substance that forms when two or more elements combine chemically

Front 21

molecule

Back 21

smallest particle of a compound that still has the compound's properties

Front 22

crystal

Back 22

rigid, lattice-like framework of many atoms bonded together

Front 23

mixture

Back 23

combination of two or more substances in any proportion - elements or compounds, retaining their original properties without forming a new compound.

Front 24

homogeneous mixture

Back 24

mixture that is has the same composition throughout

Front 25

heterogeneous mixture

Back 25

mixture that varies in composition

Front 26

solution

Back 26

homogenous mixture with tiny particles that are too small to reflect light, seen with the eye, to settle or be filtered out.

Front 27

suspension

Back 27

heterogeneous mixture with large particles are big enough to reflect light and been seen, settle and be filtered out.

Front 28

colloid

Back 28

homogenous mixture with medium-sized particles- large enough to reflect light, but too small to settle or be filtered out.

Front 29

physical change

Back 29

matter is a change in one or more of matter's physical properties.

Front 30

chemical change

Back 30

when matter changes chemically into an entirely different substance with different chemical properties.

Front 31

signs of a chemical change

Back 31

gas bubbles

change in color

odor is produced

solid comes out of a solution

Front 32

law of conservation of mass

Back 32

matter cannot be created or destroyed