Science, Grades 1-5 177 words

Vocabulary list related to science and technology for students in grades 1-5.
  1. acceleration
    an increase in rate of change
  2. air
    a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
  3. animal product
    a product made from animal material
  4. astronomy
    the branch of physics that studies celestial bodies and the universe as a whole
  5. backspace key
    the typewriter key used for back spacing
  6. balance
    harmonious arrangement or relation of parts or elements within a whole (as in a design)
  7. battery
    a collection of related things intended for use together
  8. bedrock
    solid unweathered rock lying beneath surface deposits of soil
  9. birth
    the time when something begins (especially life)
  10. body of water
    the part of the earth's surface covered with water (such as a river or lake or ocean)
  11. boiling point
    the temperature at which a liquid boils at sea level
  12. boulder
    a large smooth mass of rock detached from its place of origin
  13. burning
    a process in which a substance reacts with oxygen to give heat and light
  14. calculator
    a small machine that is used for mathematical calculations
  15. change of direction
    the act of changing the direction in which something is oriented
  16. chart
    a visual display of information
  17. cloud
    a visible mass of water or ice particles suspended at a considerable altitude
  18. color
    a visual attribute of things that results from the light they emit or transmit or reflect
  19. competition
    the act of competing as for profit or a prize
  20. computer
    a machine for performing calculations automatically
  21. computer program
    (computer science) a sequence of instructions that a computer can interpret and execute
  22. condensation
    the process of changing from a gaseous to a liquid or solid state
  23. conduction
    the transmission of heat or electricity or sound
  24. conductivity
    the transmission of heat or electricity or sound
  25. conductor
    the person who leads a musical group
  26. conservation of mass
    a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
  27. conservation of matter
    a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
  28. constellation
    a configuration of stars as seen from the earth
  29. cooling
    the process of becoming cooler; a falling temperature
  30. core
    the center of an object
  31. 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
  32. data
    a collection of facts from which conclusions may be drawn
  33. database
    an organized body of related information
  34. death
    the permanent end of all life functions in an organism or part of an organism
  35. density
    the amount per unit size
  36. desktop
    the top of a desk
  37. dinosaur
    any of numerous extinct terrestrial reptiles of the Mesozoic era
  38. disease
    an impairment of health or a condition of abnormal functioning
  39. disk drive
    computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it
  40. diskette
    a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer
  41. dissolving
    the process of going into solution
  42. distance
    the property created by the space between two objects or points
  43. download
    transfer a file or program from a central computer to a smaller computer or to a computer at a remote location
  44. drought
    a shortage of rainfall
  45. 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
  46. earthquake
    shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity
  47. edit
    prepare for publication or presentation by correcting, revising, or adapting
  48. 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
  49. electrical circuit
    an electrical device that provides a path for electrical current to flow
  50. electricity
    a physical phenomenon associated with stationary or moving electrons and protons
  51. energy
    forceful exertion
  52. engineering
    the discipline dealing with the art or science of applying scientific knowledge to practical problems
  53. environment
    the totality of surrounding conditions
  54. erosion
    (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
  55. evaporation
    the process of becoming a vapor
  56. extinction
    no longer in existence
  57. file folder
    folder that holds papers together in a filing cabinet
  58. 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
  59. food
    any substance that can be metabolized by an animal to give energy and build tissue
  60. food chain
    (ecology) a community of organisms where each member is eaten in turn by another member
  61. food web
    (ecology) a community of organisms where there are several interrelated food chains
  62. formula
    a group of symbols that make a mathematical statement
  63. fossil
    the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
  64. freezing
    the withdrawal of heat to change something from a liquid to a solid
  65. fresh water
    water that is not salty
  66. friction
    the resistance encountered when one body is moved in contact with another
  67. gas
    the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container
  68. generator
    someone who originates or causes or initiates something
  69. glacier
    a slowly moving mass of ice
  70. graduated cylinder
    a cylindrical graduate
  71. graph
    a visual representation of the relations between certain quantities plotted with reference to a set of axes
  72. graphics
    photographs or other visual representations in a printed publication
  73. ground water
    underground water that is held in the soil and in pervious rocks
  74. growth
    (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level
  75. habitat
    the type of environment in which an organism or group normally lives or occurs
  76. hard disk
    a rigid magnetic disk mounted permanently in a drive unit
  77. hard drive
    computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it
  78. hardware
    instrumentalities (tools or implements) made of metal
  79. heat
    a form of energy that is transferred by a difference in temperature
  80. herbivore
    any animal that feeds chiefly on grass and other plants
  81. home page
    the opening page of a web site
  82. insect
    small air-breathing arthropod
  83. internet
    a computer network consisting of a worldwide network of computer networks that use the TCP/IP network protocols to facilitate data transmission and exchange
  84. keyboard
    device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like
  85. landslide
    an overwhelming electoral victory
  86. life cycle
    a series of stages through which an organism passes between recurrences of a primary stage
  87. light
    (physics) electromagnetic radiation that can produce a visual sensation
  88. liquid
    fluid matter having no fixed shape but a fixed volume
  89. location
    the act of putting something in a certain place
  90. logical argument
    a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning
  91. machine
    any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
  92. magnet
    (physics) a device that attracts iron and produces a magnetic field
  93. magnetic attraction
    attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
  94. magnification
    the act of expanding something in apparent size
  95. magnifier
    a scientific instrument that magnifies an image
  96. mammoth
    any of numerous extinct elephants widely distributed in the Pleistocene; extremely large with hairy coats and long upcurved tusks
  97. mass
    the property of a body that causes it to have weight in a gravitational field
  98. melting point
    the temperature below which a liquid turns into a solid
  99. memory
    the cognitive processes whereby past experience is remembered
  100. menu
    a list of dishes available at a restaurant
  101. metal
    any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
  102. microscope
    magnifier of the image of small objects
  103. migration
    the movement of persons from one country or locality to another
  104. mineral
    solid homogeneous inorganic substances occurring in nature having a definite chemical composition
  105. mixture
    a collection containing a variety of sorts of things
  106. modem
    (from a combination of MOdulate and DEModulate) electronic equipment consisting of a device used to connect computers by a telephone line
  107. monitor
    someone who gives a warning so that a mistake can be avoided
  108. month
    one of the twelve divisions of the calendar year
  109. Moon
    the natural satellite of the Earth
  110. motion
    the act of changing location from one place to another
  111. mouse
    any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails
  112. night
    the time after sunset and before sunrise while it is dark outside
  113. observation
    the act of observing; taking a patient look
  114. ocean
    a large body of water constituting a principal part of the hydrosphere
  115. offspring
    the immediate descendants of a person
  116. oil
    a slippery or viscous liquid or liquefiable substance not miscible with water
  117. omnivore
    an animal that feeds on both animal and vegetable substances
  118. online
    connected to a computer network or accessible by computer
  119. organism
    a living thing that has (or can develop) the ability to act or function independently
  120. outer space
    any location outside the Earth's atmosphere
  121. parent
    a father or mother; one who begets or one who gives birth to or nurtures and raises a child; a relative who plays the role of guardian
  122. pebble
    a small smooth rounded rock
  123. phase change
    a change from one state (solid or liquid or gas) to another without a change in chemical composition
  124. pitch
    the property of sound that varies with variation in the frequency of vibration
  125. planet
    (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction
  126. plant
    (botany) a living organism lacking the power of locomotion
  127. plant organ
    a functional and structural unit of a plant or fungus
  128. plant product
    a product made from plant material
  129. pollution
    undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
  130. population
    the people who inhabit a territory or state
  131. position
    the particular portion of space occupied by something
  132. precipitation
    the falling to earth of any form of water (rain or snow or hail or sleet or mist)
  133. predator
    any animal that lives by preying on other animals
  134. prediction
    a statement made about the future
  135. printer
    someone whose occupation is printing
  136. pulling
    the act of pulling; applying force to move something toward or with you
  137. pushing
    the act of applying force in order to move something away
  138. reasoning
    thinking that is coherent and logical
  139. reboot
    cause to load (an operating system) and start the initial processes
  140. recycle
    use again after processing
  141. reproduction
    the act of making copies
  142. return key
    the key on electric typewriters or computer keyboards that causes a carriage return and a line feed
  143. ruler
    a person who rules or commands
  144. sand
    a loose material consisting of grains of rock or coral
  145. science
    ability to produce solutions in some problem domain
  146. scientist
    a person with advanced knowledge of one or more sciences
  147. shape
    a perceptual structure
  148. shelter
    protective covering that provides protection from the weather
  149. size
    the physical magnitude of something (how big it is)
  150. sky
    the atmosphere and outer space as viewed from the earth
  151. software
    (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory
  152. soil
    material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)
  153. solar system
    the sun with the celestial bodies that revolve around it in its gravitational field
  154. solubility
    the quality of being soluble and easily dissolved in liquid
  155. sound
    mechanical vibrations transmitted by an elastic medium
  156. space bar
    the bar-shaped typewriter key that introduces spaces when used
  157. star
    (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
  158. storage
    the act of storing something
  159. storage device
    a device that preserves information for retrieval
  160. teamwork
    cooperative work done by a team (especially when it is effective)
  161. telescope
    a magnifier of images of distant objects
  162. temperature
    the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
  163. thermometer
    measuring instrument for measuring temperature
  164. tide
    the periodic rise and fall of the sea level under the gravitational pull of the moon
  165. universe
    everything that exists anywhere
  166. upload
    transfer a file or program to a central computer from a smaller computer or a computer at a remote location
  167. vibration
    a shaky motion
  168. virus
    (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
  169. volcanic eruption
    the sudden occurrence of a violent discharge of steam and volcanic material
  170. water
    binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
  171. weather
    the atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation
  172. week
    any period of seven consecutive days
  173. weight
    the vertical force exerted by a mass as a result of gravity
  174. wind
    air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure
  175. 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
  176. 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
  177. 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