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