September 16, 2013 – Bell Work copy each simple machine the back of your ISN VIDEO -Click Here
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Transcript of September 16, 2013 – Bell Work copy each simple machine the back of your ISN VIDEO -Click Here
September 16, 2013 – Bell Workcopy each simple machine the back of your ISN VIDEO-
Click Here
8th Grade Science Vocabulary Terms (140 terms for Frayer Model)
1. absorb2. acquired traits3. adaptations4. atmosphere5. atoms6. balance of
nature7. balance scale8. benefit9. cell wall10. cells11. characteristics12. chemical change13. chemical weathering14. chlorophyll15. chromosome16. climax community17. closed circuit18. cold blooded19. cold front20. community21. competition22. compound23. conclusion24. condensation25. conductor26. consumer27. control
28. cytoplasm29. data (datum)30. decomposer31. density32. digestive system33. direct rays34. dominant traits35. echo36. echolocation37. ecosystem38. egg cell (ovary)39. electromagnet40. element41. elevation42. embryo43. erosion44. evaporation45. evidence46. evolution47. extinct48. fertilization49. flower50. food chain51. food web52. force53. fossil54. fulcrum55. galaxy56. gas57. gene
58. germinate59. gravity60. heredity61. humidity62. hypothesis63. igneous rock64. inclined plane65. incomplete circuit66. inference67. inherited traits68. investigation69. landfill70. lava71. lever72. liquids73. lunar phases74. magma75. mass76. mechanical weathering77. metamorphic rocks78. meter79. microscope80. mineral81. mixture82. molecules83. non-conductor
(insulator)84. non-native species
(exotic)85. observation
86. opaque87. organ88. ozone89. parasite90. photosynthesis91. physical change92. pioneer species93. pollen94. pollutant95. population96. precipitation97. predation98. procedure99. producer100. pulley101. purpose102. reaction force103. recessive trait104. reflect105. refract106. revolve107. rock cycle108. rotate109. runoff110. sedimentary rock111. simple machine112. single-celled organism113. solar eclipse114. solid115. sonar
116. sound waves117. speed118. sublimation119. succession120. surface mining121. symbiosis122. temperature123. thermal contraction124. thermal expansion125. thermometer126. translucent127. transparent128. unbalanced forces129. urban development130. vacuum131. vertebrate132. volume133. warm blooded134. warm front135. water cycle136. weather137. weight138. wetland139. wheel and axle140. zygote
absorbDefinition
• To collect, or take inFacts/Examples/NonExample• Dark colors absorb heat• Light is absorbed or
reflected• Leaves absorb sunlight in
order to make food (photosynthesize)
• Sound waves are absorbed or reflected (echo)
• Cells absorb nutrients from their environment
Memory Pictograph
acquired traitsDefinition
• Characteristic that an organisms develops because of its environment
Facts/Examples/NonExample• traits NOT from parent, but
from environment• Help organism survive
better• Trait develops because of
environmental conditions• Ex: culture, language, larger
muscles, acquired skill such as riding a bike
• Nonex: hair color, freckles, gender ----- inherited traits
Memory Pictograph
adaptations Definition
• Traits that help plants and animals survive better
Facts/Examples/NonExample• Body parts of behaviors that
help an organisms to survive • more adaptations better
chances for survival (Darwin)• EX: Galapagos Islands finches
with beaks adapted to what they feed on/ camouflage/ speed/ special coloration
• NONEX: traits that make survival less likely
Memory Pictograph
atmosphereDefinition
• blanket of gases that surround the Earth
Facts/Examples/NonExample• 78% nitrogen• 21% oxygen• Mixture of nitrogen, oxygen
and other gases in much smaller amounts
• Reduces in pressure as you go up in elevation
• Several layers that have different properties
• NONEX: hydrosphere, lithosphere, biosphere
Memory Pictograph
atomsDefinition
• Smallest form of matterFacts/Examples/NonExample• Atoms bond together to form
molecules• Solids, liquids, gases, and plasma –
made of atoms• Atoms contain particles:
– Protons (+)– neutrons(no charge)– electrons(-)
• Invisible and mostly empty spaceEX: Hydrogen atoms and all elements of
the Periodic TableNONEX: Molecules are MADE OF atoms
bonded together
Memory Pictograph
Carbon Atom – Atomic # 6
balance of natureDefinition
• Balance and variety of species in a community
Facts/Examples/NonExample• Helps prevent overpopulation• Birth rate and death rate are
similar• Waste of one species is food
source for another species• EX: bacteria are decomposers/
roaches are scavengers• NONEX: Lake Erie dead zones
from too much algae growth kills fish in sudden die off event
Memory Pictograph
balance scaleDefinition
• Instrument used to measure mass (amount of matter)of an object
Facts/Examples/NonExample• Measuring tool• Works like a lever • Compares unknown mass to known
mass• Measures in metric: grams (g) or kilograms (kg)• Heavy mass goes down/ light mass
goes up• EX: triple beam balance• NONEX: human weight scale –
measures mass and pull of gravity on you which depends on whether you are on Earth, moon, or another planet
Memory Pictograph
benefitDefinition
• Something that provides and advantage to an organism
Facts/Examples/NonExample• Anything that helps a
species survive• Benefits come with risksEX: pesticides can benefit
humans by reducing mosquito populations BUT organisms that feed off mosquitoes (bats, birds, fish, frogs) will be harmed
NONEX: no long term benefit to using up all the resources
Memory Pictograph
cellsDefinition
• Basic unit of all living thingsFacts/Examples/NonExample• Animal cells usually round• Plant cells usually more squared
off• Human body made up of trillions
of cells• All cells come from other living
cells• EX: prokaryote (no nucleus) and
eukaryote (has nucleus) cells• NONEX: atoms and molecules are
matter that help to make up cells but cells are alive and matter is not
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cell wallDefinition
• Outer boundary of a plant, fungi, and bacteria cells
Facts/Examples/NonExample• Hard rigid boundary that
provides support and protection
• Explains why plants do not move about well
• Can bend, but will not move• EX: made of cellulose and
makes wood hard and durable
• NONEX: animal cells do NOT have cell walls
Memory Pictograph
characteristicsDefinition
• Collection of traits that form the way an organism looks
Facts/Examples/NonExample• We inherit our traits from
our parents• So do other organisms • 50% from each parent
organism• EX: hair color, body shape,
skin color• NONEX: acquired traits such
as playing a musical instrument
Memory Pictograph