Science Note Cards

Front 1

Sound waves travel the slowest through

Back 1

gases

Front 2

The highness or lowness of sound is called

Back 2

pitch

Front 3

Sound travels from its source in

Back 3

waves

Front 4

The speed at which sound travels through different states of matter depends on

Back 4

how closely the object’s molecules are packed together

Front 5

Sound is a form of energy which is always produced by

Back 5

vibrating matter

Front 6

heard when sound reflects off of a surface

Back 6

echo

Front 7

The number of vibrations in a given unit of time

Back 7

the frequency of sound

Front 8

The rapid back-and-forth motion of matter resulting in a sound wave

Back 8

vibration

Front 9

sound can't travel through a

Back 9

vacuum

Front 10

used to detect sounds and locate underwater objects

Back 10

sonar

Front 11

increases as a submarine dives deeper into the ocean

Back 11

water pressure

Front 12

crest to trough

Back 12

wave length

Front 13

ucleus

Back 13

the center of the atom

Front 14

electron

Back 14

the negatively charged part of an atom

Front 15

proton

Back 15

the positively charged part of an atom

Front 16

matter

Back 16

what all things are made of; anything that has mass and takes up space (volume)

Front 17

neutron

Back 17

the part of the atom without a charge

Front 18

temperature

Back 18

a measure of the rise and fall of heat

Front 19

molecule

Back 19

the smallest particle or substance that is still a substance, having all properties of that substance

Front 20

atom

Back 20

small particles comprising molecules

Front 21

solid

Back 21

a state of matter where molecules may only jiggle

Front 22

liquid

Back 22

a state of matter where molecules slide and glide over each other taking the shape of their container

Front 23

gas

Back 23

a state of matter where the molecules are moving rapidly bumping into each other and taking the shape of their container

Front 24

mixture

Back 24

a combination of two or more substances that do not lose their identifying characteristics when combined

Front 25

compound

Back 25

when two or more elements combine to form a new substance

Front 26

solution

Back 26

a mixture in which particles of different substances are mixed evenly throughout

Front 27

mass

Back 27

measure of the amount of matter something contains

Front 28

volume

Back 28

amount of space that matter takes up

Front 29

physical properties

Back 29

characteristics that can be seen or measured without changing the material

Front 30

chemical properties

Back 30

characteristics that can only be seen when the material changes and new materials are formed

Front 31

states of matter

Back 31

solid, liquid or gas

Front 32

element

Back 32

any material made up of only one kind of matter

Front 33

chemical symbol

Back 33

one or two letters that stand for the name of an element

Front 34

substances

Back 34

class of matter made up of elements and compounds

Front 35

chemical formula

Back 35

group of symbols that shows the kind and number of each element in a single unit of a compound

Front 36

physical change

Back 36

change in size, shape or state of matter with no new matter being formed

Front 37

chemical change

Back 37

any change in matter that results in one or more kinds of matter being formed

Front 38

chemical reaction

Back 38

the process inwhich one or more substances are changed into one or more different substances