5Th Grade Science Vocabulary

Front 1

boiling point

Back 1

the temperature at which a liquid changes to a gas.

Front 2

classify

Back 2

group objects based on their similarities and differences.

Front 3

condensation

Back 3

the process by which a gas changes into a liquid.

Front 4

conductor

Back 4

a material that allow the flow of energy.

Front 5

dissolve

Back 5

to form a solution with another substance.

Front 6

electric circuit

Back 6

the path along which electrons (electricity) flow.

Front 7

electric current

Back 7

a constant flow of electrons through a conductor.

Front 8

electric energy

Back 8

a form of energy that is produced when electrons move from one place to another.

Front 9

energy

Back 9

causes changes in matter.

Front 10

evaporation

Back 10

the process by which a liquid changes into a gas.

Front 11

force

Back 11

push or pull on an object---can cause an object to move, change direction, or stop moving.

Front 12

freezing point

Back 12

the temperature at which a liquid changes to a solid.

Front 13

friction

Back 13

a force that acts against motion when two surfaces rub against each other.

Front 14

gas

Back 14

matter with no definite shape or volume.

Front 15

gravity

Back 15

a force that pulls all objects in the universe toward one another.

Front 16

insulator

Back 16

a material that stops or slows the flow of energy.

Front 17

light energy

Back 17

a form of energy that travels in waves and can move through empty space where there is no air.

Front 18

liquid

Back 18

matter that has a definite volume but takes the shape of its container.

Front 19

magnetism

Back 19

a force that pulls magnetic materials across a distance.

Front 20

mass

Back 20

the amount of matter in an object.

Front 21

matter

Back 21

anything that has mass and takes up space.

Front 22

mechanical energy

Back 22

energy an object has because of its motion or position.

Front 23

medium

Back 23

a substance through which forms of energy, such as light, can pass.

Front 24

melting point

Back 24

the temperature at which a solid changes to a liquid.

Front 25

mixture

Back 25

a combination of two or more different kinds of matter, each of which keeps its own physical properties.

Front 26

physical property

Back 26

a property tht can be observed, measured, or changed without changing the substance itself.

Front 27

physical state

Back 27

a form that matter can take----solid, liquid, or gas.

Front 28

reflection

Back 28

the bouncin of light (or sound) off objects.

Front 29

refraction

Back 29

the bending of light rays when they pass from one substance into a different substance.

Front 30

relative density

Back 30

the density of an object relative to that of water: objects having a relative density less than water will float; objects having a relative density greater than water will sink.

Front 31

solid

Back 31

matter that has a definite shape and volume.

Front 32

solubility

Back 32

a measure of how much of one substance will dissolve in another substance.

Front 33

solution

Back 33

a special type of mixture in which particles of the two substances are evenly mixed and cannot be easily separated.

Front 34

sound

Back 34

the movement of energy caused by vibrations.

Front 35

thermal energy

Back 35

heat energy.

Front 36

vibration

Back 36

rapid back and forth movement of matter that produces sound.

Front 37

volume

Back 37

the loudness of a sound.

Front 38

weight

Back 38

the measure of the force of gravity on an object.