5TH GRADE SCIENCE VOCABULARY

CST Prep

Tube that connects mouth with stomach

esophagus

Tool used to measure wind speed

anemometer

The amount of matter something contains

mass

Process in body where food is broken down into smaller parts for energy

and later disposal

digestion

Instrument used to measure air pressure

barometer

Long tube of muscle where most food is digested

Small intestine

Group of objects in space that move around a

central star

Solar system

Grouping of two or more atoms joined together

molecule

Force that pulls everything down toward the center of the Earth

gravity

The smallest unit of an element that has all of the properties of that

element

atom

State of matter that does not have a definite shape

or volume

gas

Everything in the universe that has mass and takes up space

matter

Small mass of ice and dust that orbits the Sun

in long, oval paths

comet

A huge spiraling storm, forms over warm water,

and is very wide

hurricane

Organ system involved in circulating blood throughout the body

Circulatory system

Process where water vapor changes from gas to

liquid

condensation

Large, rounded object in space that moves around a

star

planet

Cycle in which water moves though the

environment through evaporation,

condensation, and precipitation.

Water cycle

A large sphere of burning gases; the Sun is the largest one of these in

our solar system

star

Hot air rising; hot air is lighter than cool air

Convection currents

A substance that is made up of only one kind of

atom

element

Small rocky object that moves around the sun

asteroid

State of matter that has a definite volume but not

shape

liquid

Process where a liquid changes into a gas

Evaporation

A gas breathed out by animals

Carbon dioxide

Organ in the body that helps remove waste,

filter blood

kidney

Muscle that pumps blood through blood vessels to all parts of the body

heart

A state of matter that has a definite shape and

volume

solid

Breathing, inhale, exhale, process that

releases energy from food

respiration

Natural or artificial object that orbits another object

satellite

Gas in air, needed by humans and animals to

breathe

oxygen

A fierce spiraling storm that usually forms in a thunderstorm, up to 300

mph winds

tornado

Any form of water that falls from clouds (rain,

snow, sleet, hail)

precipitation

The amount of space an object takes up

volume

Main organ of the respiratory system

lungs

A substance made of the atoms of two or more

elements

compound

A combination of two or more substances that are not chemically combined

mixture

Earth’s only natural satellite

moon

Tube where water is removed from food in the digestive process (last

part)

Large intestine