Science, Grades 1-5

Vocabulary list related to science and technology for students in grades 1-5.
definitions & notes only words
  1. acceleration
    an increase in rate of change
  2. air
    a mixture of gases required for breathing
  3. animal product
    a product made from animal material
  4. astronomy
    the branch of physics that studies celestial bodies
  5. backspace key
    the typewriter key used for back spacing
  6. balance
    harmonious arrangement or relation of parts within a whole
  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
  11. boiling point
    the temperature at which a liquid boils at sea level
  12. boulder
    a large smooth mass of rock detached from a 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 from the light they emit
  19. competition
    the act of contending 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
    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
  35. density
    the amount per unit size
  36. desktop
    the top of a desk
  37. dinosaur
    an extinct terrestrial reptile of the Mesozoic era
  38. disease
    an impairment of health
  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
  43. download
    transfer a file or program to a smaller computer
  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
    vibration from underground movement along a fault plane
  47. edit
    prepare for publication or presentation by revising
  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 that can produce light, heat and power
  51. energy
    forceful exertion
  52. engineering
    applying scientific knowledge to practical problems
  53. environment
    the totality of surrounding conditions
  54. erosion
    the process of wearing or grinding something down
  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
  60. food chain
    community of organisms where each member is eaten by another
  61. food web
    community of organisms with several interrelated food chains
  62. formula
    a group of symbols that make a mathematical statement
  63. fossil
    the remains of a plant or animal from a past geological age
  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 when a body is moved in contact with another
  67. gas
    state of matter distinguished from solid and liquid states
  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 quantities
  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
    changing gradually from a simple to a more complex level
  75. habitat
    the type of environment in which an organism normally lives
  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
    tools or implements made of metal
  79. heat
    a form of energy 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 worldwide network of computer networks
  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
    electromagnetic radiation that can produce 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
    a mechanical or electrical device that transmits energy
  92. magnet
    a device that attracts iron and produces lines of force
  93. magnetic attraction
    attraction for iron
  94. magnification
    the act of expanding something in apparent size
  95. magnifier
    a scientific instrument that magnifies an image
  96. mammoth
    extinct elephant widely distributed in the Pleistocene
  97. mass
    the property of a body that causes it to have weight
  98. melting point
    the temperature below which a liquid turns into a solid
  99. memory
    the cognitive process whereby past experience is remembered
  100. menu
    a list of dishes available at a restaurant
  101. metal
    a chemical element that is usually a shiny solid
  102. microscope
    magnifier of the image of small objects
  103. migration
    the movement of persons from one locality to another
  104. mineral
    a solid inorganic substance occurring in nature
  105. mixture
    a collection containing a variety of sorts of things
  106. modem
    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
    small rodent having a pointed snout and small ears
  112. night
    the time after sunset and before sunrise while it is dark outside
  113. observation
    the act of taking a patient look
  114. ocean
    a large body of water that is 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 can act or function independently
  120. outer space
    any location outside the Earth's atmosphere
  121. parent
    a father or mother
  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 high or low quality of a sound
  125. planet
    a celestial body that revolves around the sun
  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
    contamination of the natural environment
  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
  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
  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 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 empirical fields
  147. shape
    a perceptual structure
  148. shelter
    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
    written programs operating on a computer system
  152. soil
    material in the top layer of the surface of the earth
  153. solar system
    the sun with the celestial bodies that revolve around it
  154. solubility
    the quality of being 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
    a celestial body of hot gases that radiates energy
  158. storage
    the act of keeping something for future use
  159. storage device
    a device that preserves information for retrieval
  160. teamwork
    cooperative labor done by a group
  161. telescope
    a magnifier of images of distant objects
  162. temperature
    the degree of hotness or coldness of a body or environment
  163. thermometer
    measuring instrument for measuring temperature
  164. tide
    the periodic rise and fall of the sea level
  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
    infectious agent that replicates itself within living hosts
  169. volcanic eruption
    the sudden occurrence of a violent discharge of steam and volcanic material
  170. water
    compound that occurs at room temperature as a clear liquid
  171. weather
    atmospheric conditions including temperature, 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 from high pressure to 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