Science, Grades 1-5 – 177 Words

English Words (177 Words) selected in "Science, Grades 1-5" will help you study for the SAT,GRE,ACT,TOEFL exams and learn english.

عودآنلاین - مرجع خرید آنلاین عودهای خوشبو هم HEM

acceleration

an increase in rate of change

air

a mixture of gases required for breathing

animal product

a product made from animal material

astronomy

the branch of physics that studies celestial bodies

backspace key

the typewriter key used for back spacing

balance

harmonious arrangement or relation of parts within a whole

battery

a collection of related things intended for use together

bedrock

solid unweathered rock beneath surface deposits of soil

birth

the time when something begins (especially life)

body of water

the part of the earth’s surface covered with water

boiling point

the temperature at which a liquid boils at sea level

boulder

a large smooth mass of rock detached from a place of origin

burning

a process in which a substance reacts with oxygen to give heat and light

calculator

a small machine that is used for mathematical calculations

change of direction

the act of changing the direction in which something is oriented

chart

a visual display of information

cloud

a visible mass of water or ice particles suspended at a considerable altitude

color

a visual attribute of things from the light they emit

competition

the act of contending with others for rewards or resources

computer

a machine for performing calculations automatically

computer program

(computer science) a sequence of instructions that a computer can interpret and execute

condensation

process of changing from a gas to a liquid or solid state

conduction

the transmission of heat or electricity or sound

conductivity

the property of transmitting heat, electricity, or sound

conductor

the person who leads a musical group

conservation of mass

a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system

conservation of matter

a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system

constellation

a configuration of stars as seen from the earth

cooling

the process of becoming cooler; a falling temperature

core

the center of an object

cursor

(computer science) indicator consisting of a movable spot of light (an icon) on a visual display; moving it allows the user to point to commands or screen positions

data

a collection of facts from which conclusions may be drawn

database

an organized body of related information

death

the permanent end of all life functions in an organism

density

the amount per unit size

desktop

the top of a desk

dinosaur

an extinct terrestrial reptile of the Mesozoic era

disease

an impairment of health

disk drive

computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it

diskette

a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer

dissolving

the process of going into solution

distance

the property created by the space between two objects

download

transfer a file or program to a smaller computer

drought

a shortage of rainfall

e-mail

(computer science) a system of world-wide electronic communication in which a computer user can compose a message at one terminal that can be regenerated at the recipient’s terminal when the recipient logs in

earthquake

vibration from underground movement along a fault plane

edit

prepare for publication or presentation by revising

egg

animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds

electrical circuit

an electrical device that provides a path for electrical current to flow

electricity

a physical phenomenon that can produce light, heat and power

energy

forceful exertion

engineering

applying scientific knowledge to practical problems

environment

the totality of surrounding conditions

erosion

the process of wearing or grinding something down

evaporation

the process of becoming a vapor

extinction

the state of being no longer in existence

file folder

folder that holds papers together in a filing cabinet

floppy disk

a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer

food

any substance that can be metabolized by an animal

food chain

community of organisms where each member is eaten by another

food web

community of organisms with several interrelated food chains

formula

a group of symbols that make a mathematical statement

fossil

the remains of a plant or animal from a past geological age

freezing

the withdrawal of heat to change something from a liquid to a solid

fresh water

water that is not salty

friction

the resistance when a body is moved in contact with another

gas

state of matter distinguished from solid and liquid states

generator

someone who originates, causes, or initiates something

glacier

a slowly moving mass of ice

graduated cylinder

a container marked with lines and used to measure liquid

graph

a visual representation of the relations between quantities

graphics

photographs or other visual representations in a printed publication

ground water

underground water that is held in the soil and in pervious rocks

growth

changing gradually from a simple to a more complex level

habitat

the type of environment in which an organism normally lives

hard disk

a rigid magnetic disk mounted permanently in a drive unit

hard drive

computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it

hardware

tools or implements made of metal

heat

a form of energy transferred by a difference in temperature

herbivore

any animal that feeds chiefly on grass and other plants

home page

the opening page of a web site

insect

small air-breathing arthropod

internet

a worldwide network of computer networks

keyboard

device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like

landslide

the descent of a large mass of dirt and rock down a slope

life cycle

a series of stages through which an organism passes between recurrences of a primary stage

light

electromagnetic radiation that can produce visual sensation

liquid

fluid matter having no fixed shape but a fixed volume

location

the act of putting something in a certain place

logical argument

a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning

machine

a mechanical or electrical device that transmits energy

magnet

a device that attracts iron and produces lines of force

magnetic attraction

attraction for iron

magnification

the act of expanding something in apparent size

magnifier

a scientific instrument that magnifies an image

mammoth

extinct elephant widely distributed in the Pleistocene

mass

the property of a body that causes it to have weight

melting point

the temperature at which a solid turns into a liquid

memory

the cognitive process whereby past experience is remembered

menu

a list of dishes available at a restaurant

metal

a chemical element or alloy that is usually a shiny solid

microscope

magnifier of the image of small objects

migration

the movement of persons from one locality to another

mineral

a solid inorganic substance occurring in nature

mixture

a collection containing a variety of sorts of things

modem

a device used to connect computers by a telephone line

monitor

someone who observes to ensure fairness or prevent mistakes

month

one of the twelve divisions of the calendar year

Moon

the natural satellite of the Earth

motion

the act of changing location from one place to another

mouse

small rodent having a pointed snout and small ears

night

the time after sunset and before sunrise while it is dark outside

observation

the act of taking a patient look

ocean

a large body of water that is part of the hydrosphere

offspring

the immediate descendants of a person

oil

a slippery or viscous liquid or liquefiable substance not miscible with water

omnivore

an animal that feeds on both animal and vegetable substances

online

connected to a computer network or accessible by computer

organism

a living thing that can act or function independently

outer space

any location outside the Earth’s atmosphere

parent

a father or mother

pebble

a small smooth rounded rock

phase change

a change from one state (solid or liquid or gas) to another without a change in chemical composition

pitch

the high or low quality of a sound

planet

a celestial body that revolves around the sun

plant

a living organism without the power to move

plant organ

a functional and structural unit of a plant or fungus

plant product

a product made from plant material

pollution

contamination of the natural environment

population

the people who inhabit a territory or state

position

the particular part of space occupied by something

precipitation

the falling to earth of any form of water

predator

any animal that lives by preying on other animals

prediction

a statement made about the future

printer

someone whose occupation is printing

pulling

the act of pulling

pushing

the act of applying force in order to move something away

reasoning

thinking that is coherent and logical

reboot

cause to load and start the initial processes

recycle

use again after processing

reproduction

the act of making copies

return key

the key on electric typewriters or computer keyboards that causes a carriage return and a line feed

ruler

a person who governs or commands

sand

a loose material consisting of grains of rock or coral

science

ability to produce solutions in some problem domain

scientist

a person with advanced knowledge of empirical fields

shape

a perceptual structure

shelter

covering that provides protection from the weather

size

the physical magnitude of something (how big it is)

sky

the atmosphere and outer space as viewed from the earth

software

written programs operating on a computer system

soil

material in the top layer of the surface of the earth

solar system

the sun with the celestial bodies that revolve around it

solubility

the quality of being easily dissolved in liquid

sound

mechanical vibrations transmitted by an elastic medium

space bar

the bar-shaped typewriter key that introduces spaces when used

star

a celestial body of hot gases that radiates energy

storage

the act of keeping something for future use

storage device

a device that preserves information for retrieval

teamwork

cooperative labor done by a group

telescope

a magnifier of images of distant objects

temperature

the degree of hotness or coldness of a body or environment

thermometer

measuring instrument for measuring temperature

tide

the periodic rise and fall of the sea level

universe

everything that exists anywhere

upload

transfer data to a server, remote computer, or website

vibration

a shaky motion

virus

infectious agent that replicates itself within living hosts

volcanic eruption

the sudden occurrence of a violent discharge of steam and volcanic material

water

compound that occurs at room temperature as a clear liquid

weather

atmospheric conditions such as temperature and precipitation

week

any period of seven consecutive days

weight

the vertical force exerted by a mass as a result of gravity

wind

air moving from high pressure to low pressure

word processor

an application that provides the user with tools needed to write and edit and format text and to send it to a printer

World Wide Web

computer network consisting of a collection of internet sites that offer text and graphics and sound and animation resources through the hypertext transfer protocol

year

the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun