Science Study Guide?

Front 1

Matter

Back 1

anything that has mass and occupies space.

Front 2

Physical Property

Back 2

a characteristic of a pure substance that can be observed without changing it into another substance.

Front 3

Chemical Property

Back 3

a characteristic of a pure substance that describes its ability to change into different substances.

Front 4

Element

Back 4

a pure substance that can't be broken down into other substances by chemical or physical properties

Front 5

Atom

Back 5

the basic particle from which elements are made.

Front 6

Molecule

Back 6

particle made of two or more atoms bonded together

Front 7

Compound

Back 7

pure substance made of two elements chemically combined.

Front 8

Chemical formula

Back 8

formula that gives elements in a compound and the ratio of atoms.

Front 9

Molecule

Back 9

particle made of two or more atoms bonded together.

Front 10

Compound

Back 10

pure substance made of two or more elements chemically combined.

Front 11

Mixture

Back 11

two or more substances together but not chemically combined.

Front 12

Heterogeneous mixture

Back 12

when pure substances are evenly distributed throughout the mixture.

Front 13

Homogeneous mixture

Back 13

substances are evenly distributed throughout the mixture

Front 14

Energy

Back 14

The ability to do work.

Front 15

Chemical change

Back 15

a change in which two or more substances change or break apart to form new substances. (Ex. oxidation and electrolysis)

Front 16

Solid

Back 16

A state of matter with a definite shape and volume.

Front 17

Crystalline solid

Back 17

A solid made of crystals in which particles are arranged in a regular repeating pattern. (Ex. quartz, amethyst)

Front 18

Amorphous solid

Back 18

A solid made of particles that aren't arranged in a regular repeating pattern. (Ex. butter, ice cream)

Front 19

Liquid

Back 19

A state of matter with no definite shape but definite volume.

Front 20

Fluid

Back 20

anything that can flow.

Front 21

Gas

Back 21

a state of matter with no definite shape nor volume.

Front 22

A solid will keep its volume and its shape in any position in any container. ( T or F )

Back 22

True

Front 23

Liquid,Fluid,Solid or Gas?
There particles stay in about the same position.

Back 23

Solid

Front 24

A liquid's volume doesn't change no matter what shape its container has. ( T or F )

Back 24

True

Front 25

What happens to the particles of a gas when you put it in a container?

Back 25

The particles spread out.

Front 26

Melting

Back 26

The change in state from solid to liquid.

Front 27

Freezing

Back 27

The change of state from liquid to solid.

Front 28

Vaporisation

Back 28

The change in state from liquid to gas.

Front 29

Boiling

Back 29

The process which occurs when vaporisation takes place throughout the liquid.( Ex. a pot of water reaches its boiling point)

Front 30

Evaporation

Back 30

The process which occurs when vaporization takes place on the surface of a liquid.( Ex. liquid water turns into water vapor)

Front 31

Condensation is the opposite of vaporization. ( T or F )

Back 31

True

Front 32

Sublimation

Back 32

The change in state from solid to gas without turning into a liquid.

Front 33

Substance

Back 33

A single kind of matter that's pure and has a specific set of properties.

Front 34

Chemical bond

Back 34

The force that holds two atoms together.

Front 35

Molecule

Back 35

A particle made of two or more atoms bonded together.

Front 36

Chemical Formula

Back 36

A formula that gives the elements in a compound and the ratio of the atoms.

Front 37

Physical Change

Back 37

A change in a substance that doesn't change its identity. ( Ex. dissolving,crushing cans)

Front 38

Temperature

Back 38

A measure of the average energy of the motion of the particles of a substance.

Front 39

Thermal Energy

Back 39

The total energy of all the particles in an object.

Front 40

Volume

Back 40

The amount of space the matter occupies.

Front 41

Pressure

Back 41

The force pushing on a surface divided by the area of the surface.

Front 42

Boyle's law

Back 42

A principle describes the relationship between the pressure and the volume of a gas at a constant temperature.

Front 43

Charles Law

Back 43

A principle that describes the relationship between the temperature and volume of a gas at a constant pressure.

Front 44

Nucleus

Back 44

The central core of an atom containing protons and usually neutrons.

Front 45

Atomic Number

Back 45

The number of protons in the nucleus of an atom.

Front 46

Atomic Mass

Back 46

The average mass of all of the isotopes of an element.

Front 47

Periodic table

Back 47

a chart of the elements showing the repeating pattern of their properties.

Front 48

Chemical Symbols

Back 48

a one- or two - letter representation of an element.