K-12 Science Vocabulary

   A Glossary of Science and Technology/Engineering terms has been published in the Massachusetts Department of Education Science and Technology/Engineering Curriculum Frameworks, available at: http://www.mass.edu/frameworks/scitech/1006.doc . Additional terms useful in Science K-12 are listed below.

TERM DEFINITION LEVEL UNIT
abiotic   H.S. 03. Cell
accuracy   ms8 Properties of Matter
acid   ms7 Human body
acid rain   H.S. 12. Ecology
active transport   ms7 cells
active transport   H.S. 04.Cell Membrane
adaptation   k-6  
adaptation A characteristic that improves an individual’s ability to survive and reproduce in a particular environment. ms7 Evolution
adult   k-6  
advantage   k-6  
aerobic respiration   H.S. 11. Energetics: Photosynthesis & Cell Respiration
alveoli tiny thin walled grape like clusters at the end of each bronchiole that are surrounded by capillaries where O2 and CO2 exchange take place. ms7 Human body
alveoli   H.S. 13. Human Physiology
amino acid   H.S. 02. Biochemistry
Amphibian   ms7 Classifcation
anaerobic respiration   H.S. 11. Energetics: Photosynthesis & Cell Respiration
anaphase   H.S. 05.  Mitosis/Meiosis
animal  Kingdom made up of complex multicellular organisms that lack cell walls, can usually move around and quickly respond to their environment. ms7 Classifcation
Animalia   H.S. 10. Taxonomy
anti-codon   H.S. 08. DNA, Replication, Protein Synthesis
archaea Domain made up of prokaryotes  most of which are known to live in extreme environments) that are distinguished from other prokaryotes by differences in their genetics and in the make up of their cell wall. Archaebacteria ms7 Classifcation
Archaebacteria   H.S. 10. Taxonomy
architect model   ms8 Engineering
artery blood vessel that carries blood away from the heart and has thick, elastic walls made of connective tissue and smooth muscle tissue ms7 Human body
artery   H.S. 13. Human Physiology
artificial selection Selection that is under human control. ms7 Heredity
asexual reproduction   H.S. 03. Cell
asexual Reproduction  Reproduction involving the cells of a single parent ms7 Heredity
assembly process   ms8 Engineering
assistive device   ms8 Engineering
atom   k-6  
Atom The smallest particle of a substance P ms8 Particle Structures and Interactions
Atomic mass The average mass of one atom of an element. P ms8 Particle Structures and Interactions
Atomic number The number of protons in the nucleus of an atom. P ms8 Particle Structures and Interactions
ATP   H.S. 11. Energetics: Photosynthesis & Cell Respiration
atrium   H.S. 13. Human Physiology
attract   k-6  
autotroph   H.S. 12. Ecology
Bacteria Prokaryotes that usually have a cell wall and that usually reproduce by cell division. (Eubacteria) ms7 Classifcation
Bacteria   H.S. 10. Taxonomy
barometer   k-6  
bending force   ms8 Engineering
Biosphere All the parts of the Earth that support life. ms7 Ecology
biosphere   H.S. 12. Ecology
biotic   H.S. 03. Cell
Bird warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings ms7 Classifcation
bladder   H.S. 13. Human Physiology
blood is the fluid conducted by the circulatory system.  ms7 Human body
boiling the process that occurs when vaporization takes place inside a liquid as well as on the surface P ms8 Particle Motion Theory
Boiling point the temperature at which a substance changes from a liquid to a gas  P ms8 Particle Motion Theory
brain   H.S. 13. Human Physiology
Bronchi two short tubes that branch off the lower ends of the trachea and carry air into the lungs. ms7 Human body
Bronchioles   ms7 Human body
Calvin cycle   H.S. 11. Energetics: Photosynthesis & Cell Respiration
capillary microscopic blood vessel that connect arteries and veins;  has walls one cell thick, through which nutrients and oxygen diffuse into body cells and waste material and carbon dioxide diffuse out ms7 Human body
capillary   H.S. 13. Human Physiology
carbohydrate nutrient that is usually the body’s main source of energy ms7 cells
carbohydrate   H.S. 02. Biochemistry
Carbon Cycle A model that describes how carbon molecules move between the living and nonliving world. ms7 Ecology
cardiac   H.S. 13. Human Physiology
Carrying Capacity  The largest number of individuals of a particular species that an ecosystem can support over time. ms7 Ecology
catalyst   H.S. 02. Biochemistry
category   k-6  
Cell  The smallest unit that can perform all of life’s processes. ms7 cells
cell   H.S. 03. Cell
cell membrane   H.S. 04.Cell Membrane
Cell Membrane – A phospholipid layer that covers a cell’s surface and acts as a barrier between the inside of the cell and the cell’s environment. ms7 cells
cell product   H.S. 03. Cell
Cell Theory  1.  All organisms are made of one or more cells. 2.  The cell is the basic unit of all living things.3.  All cells come from existing cells.  ms7 cells
cell wall   H.S. 03. Cell
Celsius scale   k-6  
Centi one hundred times less than ms8 Properties of Matter
centimeter   k-6  
central nervous system (CNS)   H.S. 13. Human Physiology
centriole   H.S. 05.  Mitosis/Meiosis
centromere   H.S. 05.  Mitosis/Meiosis
cerebellum   H.S. 13. Human Physiology
cerebrum   H.S. 13. Human Physiology
characteristic   k-6  
Chemical bond  The force that holds two atoms together. P ms8 Particle Structures and Interactions
Chemical change A change in which one or more substances combine or break apart to form new substances P ms8 Mixtures vs. Pure Substances
Chemical combination   ms8 Particle Structures and Interactions
Chemical composition    ms8 Particle Structures and Interactions
chemical digestion   H.S. 13. Human Physiology
chemical digestion – occurs when enzymes and other chemicals break down large food   ms7 Human body
chemical energy   k-6  
Chemical equations   ms8 Particle Structures and Interactions
Chemical Symbols A one or two-letter representation of an element. P ms8 Particle Structures and Interactions
chime liquid product of digestion ms7 Human body
Chlorophyll  Is contained in chloroplasts and is responsible for trapping the sun’s light, which plants use to make sugar. ms7 cells
Chloroplast  Organelles in plant and algae cells in which photosynthesis takes place. ms7 cells
chloroplast   H.S. 11. Energetics: Photosynthesis & Cell Respiration
chromatid   H.S. 05.  Mitosis/Meiosis
chromatin   H.S. 05.  Mitosis/Meiosis
Chromatography   ms8 Mixtures vs. Pure Substances
chromosome   H.S. 07.Genetics
Chromosomes prokaryotic cell, the main ring of DNA. In a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein.  In a ms7 Heredity
cilia   H.S. 10. Taxonomy
circuit   k-6  
Class    H.S. 10. Taxonomy
classify   k-6  
climax community   H.S. 12. Ecology
co-dominance   H.S. 07.Genetics
codon   H.S. 08. DNA, Replication, Protein Synthesis
cold-blooded   k-6  
commensalism   H.S. 12. Ecology
Common Ancestor   ms7 Evolution
community   k-6  
Community   All the populations of different species that live in an ecosystem. ms7 Ecology
community   H.S. 12. Ecology
compare   k-6  
Competition   ms7 Evolution
competition   H.S. 09. Evolution
complementary base pairs   H.S. 08. DNA, Replication, Protein Synthesis
Compound A substance made of two or more elements chemically combined. P ms8 Particle Structures and Interactions
compression force   ms8 Engineering
Concentration (of a substance)   ms7 cells
concentration gradient   H.S. 04.Cell Membrane
Conclusion   ms8 Experimental Design
condensation   k-6  
condensation the change of state from a gas to a liquid  P ms8 Particle Motion Theory
Conduction the transfer of heat energy by collisions by the particles in a substance H ms8 Particle Motion Theory
Conservation of mass (matter)   ms8 Mixtures vs. Pure Substances
Constants any variable that you keep constant and do not allow to change  K ms8 Experimental Design
construction techniques   ms8 Engineering
consumer   k-6  
Consumer   An organism that cannot create energy rich molecules but obtains its food by eating other organisms. ms7 Ecology
control   k-6  
control   H.S. 01.Scientific Method
control and support (as in vehicles)   ms8 Engineering
Control group   ms8 Experimental Design
Convection the transfer of heat energy in a gas or liquid by means of currents in the heated fluid. The fluid moves carrying energy with it. H ms8 Particle Motion Theory
cristae   H.S. 03. Cell
crossing over   H.S. 05.  Mitosis/Meiosis
crust   k-6  
Cytoplasm   ms7 cells
data   k-6  
data   H.S. 01.Scientific Method
decay   k-6  
deciduous forest   H.S. 12. Ecology
Decompose (break down)   ms8 Particle Structures and Interactions
Decomposer   Species that break down dead organisms. ms7 Ecology
denitrifying bacteria   H.S. 12. Ecology
Density the mass of a substance contained in a unit of volume   P ms8 Properties of Matter
Dependent variable the variable is the variable that changes in relation to the independent variable K ms8 Experimental Design
deposition the change of state from a gas to a solid P ms8 Particle Motion Theory
Desalination   ms8 Mixtures vs. Pure Substances
describe   k-6  
desert   H.S. 12. Ecology
design   k-6  
design   ms8 Engineering
develop   k-6  
develop solutions   ms8 Engineering
diaphragm – muscle beneath the lungs that contracts and relaxes to move gases in and out of the body ms7 Human body
dichotomous key   H.S. 10. Taxonomy
Dichotomous Key – An aid that is used to identify organisms and that consists of the answers to a series of questions. ms7 Classifcation
Diffusion   ms7 cells
diffusion   H.S. 04.Cell Membrane
digestion – mechanical and chemical breakdown of food into small molecules that cells can absorb and use ms7 Human body
dihybrid   H.S. 07.Genetics
Distillation   ms8 Mixtures vs. Pure Substances
Diversity   ms7 Evolution
divisions of manufacturing organization   ms8 Engineering
DNA   H.S. 08. DNA, Replication, Protein Synthesis
DNA  – a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live. ms7 Heredity
domains   H.S. 10. Taxonomy
Dominant – The trait observed in the first generation when parents that have different traits are bred. ms7 Heredity
dominant   H.S. 07.Genetics
double helix   H.S. 08. DNA, Replication, Protein Synthesis
drafting (as in drawing)   ms8 Engineering
drag (on vehicles)   ms8 Engineering
ecosystem   k-6  
Ecosystem  All the living organisms that live in an area and the nonliving features of their environment.  ms7 Ecology
ecosystem   H.S. 12. Ecology
egg   k-6  
Egg   ms7 Heredity
electrical energy   k-6  
electron   k-6  
Electron  A small, negatively charged particle in the nucleus of an atom. P ms8 Particle Structures and Interactions
Electron Cloud Model    ms8 Particle Structures and Interactions
Electron Shell Model (Bohr Model)   ms8 Particle Structures and Interactions
electron transport chain   H.S. 11. Energetics: Photosynthesis & Cell Respiration
emigration   H.S. 12. Ecology
Endoplasmic Reticulum  A system of membranes that is found in cell’s cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids. ms7 cells
endoplasmic reticulum   H.S. 03. Cell
energy rich molecules   ms7 cells
engineering design process   ms8 Engineering
engineering drawings   ms8 Engineering
engineering model   ms8 Engineering
environment   k-6  
enzyme   H.S. 02. Biochemistry
enzymes – a type of protein that speeds up chemical reactions in the body without being changed or used up itself mucus ms7 Human body
epiglottis   ms7 Human body
erosion   k-6  
erupt   k-6  
esophagus   ms7 Human body
Estimation   ms8 Properties of Matter
Eukarya   H.S. 10. Taxonomy
eukaryote   H.S. 03. Cell
Eukaryote – An organism made up of cells that have a nucleus enclosed by a membrane.  Include protists, animals, plants and fungi. ms7 Classifcation
evaporation   k-6  
evaporation the process that occurs when vaporization takes place only on the surface of a liquid  P ms8 Particle Motion Theory
evidence   k-6  
Evolution – The process in which an inherited characteristic in a population changes over generations such that new species sometimes arise. ms7 Evolution
excretion   H.S. 13. Human Physiology
exhaling   ms7 Human body
experiment   k-6  
Experimental group   ms8 Experimental Design
external   k-6  
extinct   k-6  
Extinction – Describes a species that has died out completely. ms7 Evolution
extinction   H.S. 12. Ecology
facilitated diffusion   H.S. 04.Cell Membrane
Fahrenheit scale   k-6  
Family   H.S. 10. Taxonomy
feedback   ms8 Engineering
fermentation   H.S. 11. Energetics: Photosynthesis & Cell Respiration
fertilization   H.S. 06. Reproduction
Filtering   ms8 Mixtures vs. Pure Substances
Fish   ms7 Classifcation
fit   H.S. 09. Evolution
flagellum   H.S. 10. Taxonomy
flow   k-6  
food chain   k-6  
food web   k-6  
Food Web   A model that shows the complex feeding relationships among organisms in a community. ms7 Ecology
Foot   ms8 Properties of Matter
force   k-6  
Fossil – Trace or remains of an organism that lived long ago, mostly commonly preserved in sedimentary rock. ms7 Evolution
foundation   ms8 Engineering
framing (as in house)   ms8 Engineering
freezing the change in state from a liquid to a solid  P ms8 Particle Motion Theory
frequency   k-6  
friction (on vehicles)   ms8 Engineering
fulcrum   k-6  
Function   ms7 cells
Fungi   H.S. 10. Taxonomy
Fungi – Kingdom made up of non green eukaryotic organisms that have no means of movement, reproduce by using spores and get food by breaking down substances in their surroundings and absorbing the nutrients. ms7 Classifcation
gall bladder   ms7 Human body
Gallon   ms8 Properties of Matter
gamete   H.S. 05.  Mitosis/Meiosis
Gas state of matter with no definite shape or volume P ms8 Particle Motion Theory
gear   k-6  
gel electrophoresis   H.S. 08. DNA, Replication, Protein Synthesis
Generation   ms7 Heredity
Genes – One set of instructions for an inherited trait. ms7 Heredity
genetic engineering   H.S. 08. DNA, Replication, Protein Synthesis
genotype   H.S. 07.Genetics
Genotype – The entire genetics makeup of an organism.  The combination of one or genes for one or more specific traits. ms7 Heredity
Genus   H.S. 10. Taxonomy
geographic isolation   H.S. 09. Evolution
global warming   H.S. 12. Ecology
glucose  simple sugar used by cells ms7 Human body
glycolysis   H.S. 11. Energetics: Photosynthesis & Cell Respiration
goal   ms8 Engineering
Golgi Bodies  Cell organelle that helps make and package materials to be transported out of the cell. ms7 cells
Golgi body (apparatus)   H.S. 03. Cell
Gram   ms8 Properties of Matter
grasslands   H.S. 12. Ecology
gravity (on vehicles)   ms8 Engineering
grow   k-6  
guidance system   ms8 Engineering
habitat   k-6  
Habitat   A place where an organism lives and that provides the types of food, shelter, moisture, and temperature needed for survival. ms7 Ecology
heart   ms7 Human body
Heat    ms8 Particle Motion Theory
hemoglobin   H.S. 13. Human Physiology
Heredity – The passing of genetic traits from one generation to another. ms7 Heredity
heterotroph   H.S. 12. Ecology
heterozygous   H.S. 07.Genetics
hibernation   k-6  
homeostasis   H.S. 13. Human Physiology
homologous chromosomes   H.S. 05.  Mitosis/Meiosis
homologous structures   H.S. 09. Evolution
homozygous   H.S. 07.Genetics
hormone   H.S. 13. Human Physiology
humidity   k-6  
hybrid   H.S. 07.Genetics
hypertonic   H.S. 04.Cell Membrane
hypothesis   k-6  
Hypothesis a prediction about the outcome of an experiment   K ms8 Experimental Design
hypothesis   H.S. 01.Scientific Method
hypotonic   H.S. 04.Cell Membrane
identify   k-6  
igneous   k-6  
immigration   H.S. 12. Ecology
Independent variable -  the variable that is carefully manipulate so that it changes in a predictable manner  K ms8 Experimental Design
individual   k-6  
inhaling   ms7 Human body
inherit   k-6  
input   ms8 Engineering
inquiry   k-6  
instinct   k-6  
insulation   ms8 Engineering
internal   k-6  
Interphase   H.S. 05.  Mitosis/Meiosis
interpret   k-6  
invasive species   H.S. 12. Ecology
Invertebrate   ms7 Classifcation
invertebrate   H.S. 10. Taxonomy
investigate   k-6  
Ions   ms8 Particle Structures and Interactions
Isotopes   ms8 Particle Structures and Interactions
kidney   H.S. 13. Human Physiology
Kilo one thousand times greater than ms8 Properties of Matter
kinetic energy   k-6  
Kingdom   ms7 Classifcation
Kingdom   H.S. 10. Taxonomy
Krebs cycle   H.S. 11. Energetics: Photosynthesis & Cell Respiration
landform   k-6  
large intestine   ms7 Human body
larva   k-6  
Law of Dominance   H.S. 07.Genetics
Law of Independent Assortment   H.S. 07.Genetics
Law of Segregation   H.S. 07.Genetics
legumes   H.S. 12. Ecology
lever   k-6  
life cycle   k-6  
lift (on vehicles)   ms8 Engineering
light   k-6  
light-dependent cycle   H.S. 11. Energetics: Photosynthesis & Cell Respiration
light-independent reactions   H.S. 11. Energetics: Photosynthesis & Cell Respiration
Limiting Factor   Anything that can restrict the size of a population, including living and nonliving features of an ecosystem, such as predators or drought. ms7 Ecology
lipid   H.S. 02. Biochemistry
Liquid state of matter with no definite shape but a definite volume P ms8 Particle Motion Theory
Liter   ms8 Properties of Matter
liver   ms7 Human body
living / nonliving   k-6  
lung   H.S. 13. Human Physiology
lungs   ms7 Human body
lysosome   H.S. 03. Cell
Lysosomes  A cell organelle that contains digestive enzymes. ms7 cells
magma   k-6  
magnet   k-6  
Magnetic A characteristic property of metals that are attracted to magnets and can be made into magnets. P ms8 Mixtures vs. Pure Substances
maintenance system (as in vehicles)   ms8 Engineering
Mammal   ms7 Classifcation
manufacture   ms8 Engineering
marine   H.S. 12. Ecology
Mass the amount of matter in an object  P ms8 Properties of Matter
materials   k-6  
matter   k-6  
mechanical digestion   H.S. 13. Human Physiology
mechanical digestion   breakdown of food through chewing, churning and mixing ms7 Human body
medulla oblongata   H.S. 13. Human Physiology
meiosis   H.S. 05.  Mitosis/Meiosis
melting the change in state from a solid to a liquid  P ms8 Particle Motion Theory
Melting point the temperature at which a substance changes from a solid to a liquid P ms8 Particle Motion Theory
metamorphic   k-6  
metamorphosis   k-6  
Metaphase   H.S. 05.  Mitosis/Meiosis
meter   k-6  
Meter the basic SI unit of length  P ms8 Properties of Matter
metric system   k-6  
Micro   ms8 Properties of Matter
Microscope   ms7 cells
migration   k-6  
Mile   ms8 Properties of Matter
Milli one thousand times less than ms8 Properties of Matter
millimeter   k-6  
mineral   k-6  
mitochondria   H.S. 03. Cell
Mitochondria/on  The cell organelle that is surrounded by two membranes and that is the site of cellular respiration. ms7 cells
mitosis   H.S. 05.  Mitosis/Meiosis
Mixtures Two or more substances that are mixed together but not chemically combined. P ms8 Mixtures vs. Pure Substances
Molecular Formulas A combination of chemical symbols that represent the elements in each molecule of a compound. P ms8 Particle Structures and Interactions
Molecular Structures   ms8 Particle Structures and Interactions
molecule   k-6  
Molecule A combination of two or more atoms.  P ms8 Particle Structures and Interactions
molecules into smaller ones   ms7 Human body
Monera   H.S. 10. Taxonomy
monohybrid   H.S. 07.Genetics
morphological   H.S. 09. Evolution
motor neuron   H.S. 13. Human Physiology
mouth   ms7 Human body
mRNA   H.S. 08. DNA, Replication, Protein Synthesis
multicellular   H.S. 10. Taxonomy
mutualism   H.S. 12. Ecology
Nano   ms8 Properties of Matter
Natural Selection – The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution. ms7 Evolution
natural selection   H.S. 09. Evolution
negative feedback loop   H.S. 13. Human Physiology
neuron   H.S. 13. Human Physiology
Neutron A small particle in the nucleus of an atom with no electrical charge. P ms8 Particle Structures and Interactions
Niche   The unique ways an organism survives, obtains food and shelter, and avoids danger. ms7 Ecology
nitrates   H.S. 12. Ecology
nitrifying bacteria   H.S. 12. Ecology
nitrites   H.S. 12. Ecology
nitrogen cycle   H.S. 12. Ecology
nitrogen-fixing bacteria   H.S. 12. Ecology
nitrogenous waste   H.S. 13. Human Physiology
nondisjunction   H.S. 05.  Mitosis/Meiosis
nucleic acid   H.S. 08. DNA, Replication, Protein Synthesis
nucleolus   H.S. 03. Cell
nucleotide   H.S. 08. DNA, Replication, Protein Synthesis
nucleus   H.S. 03. Cell
Nucleus –. In eukaryotic cell, a membrane bound organelle that contains the cells DNA and that has a role in process such as growth, metabolism, and reproduction ms7 cells
object   k-6  
observe   k-6  
Offspring   ms7 Heredity
Offspring   ms7 Heredity
offspring   H.S. 06. Reproduction
orbit   k-6  
Order   H.S. 10. Taxonomy
organ   H.S. 13. Human Physiology
organ system   H.S. 13. Human Physiology
organelle   H.S. 03. Cell
organism   k-6  
Organism    An individual living things that can perform all life processes. ms7 Ecology
organism   H.S. 03. Cell
orthographic projection   ms8 Engineering
Osmosis   ms7 cells
osmosis   H.S. 04.Cell Membrane
output   ms8 Engineering
overpopulation   H.S. 12. Ecology
pancreas   ms7 Human body
parasitism   H.S. 12. Ecology
Passive transport   ms7 cells
peripheral nervous system (PNS)   H.S. 13. Human Physiology
peristalsis – waves of muscular contraction that move food through the digestive tract   ms7 Human body
Permeable   ms7 cells
pharynx   H.S. 13. Human Physiology
phase   k-6  
Phase change   ms8 Particle Motion Theory
Phenotype – An organisms appear or other detectable characteristic. ms7 Heredity
phenotype   H.S. 07.Genetics
phospholipid   H.S. 04.Cell Membrane
photosynthesis   k-6  
photosynthesis   H.S. 11. Energetics: Photosynthesis & Cell Respiration
phylogenetic tree   H.S. 07.Genetics
Phylum   H.S. 10. Taxonomy
Physical change a change in a substance that does not change its identity: for example, a change of state  P ms8 Mixtures vs. Pure Substances
pioneer community   H.S. 12. Ecology
pitch   k-6  
Plant – Kingdom made up of complex multicellular organisms that are usually green, have cell walls made of cellulose, can not move around and use the suns energy to make sugar by photosynthesis. ms7 Classifcation
Plantae   H.S. 10. Taxonomy
plasma state of matter in which the atoms are stripped of their electrons P ms8 Particle Motion Theory
pole   k-6  
pollution   k-6  
population   k-6  
Population    All the organisms that belong to the same species living in a community. ms7 Ecology
Population   ms7 Evolution
population   H.S. 12. Ecology
potential energy   k-6  
precipitation   k-6  
Precision    ms8 Properties of Matter
predator   k-6  
Predator  An organism that captures and eats consumers. ms7 Ecology
predator   H.S. 12. Ecology
predict   k-6  
pressure   k-6  
prey   k-6  
Prey  Organisms that are captured by a predator. ms7 Ecology
prey   H.S. 12. Ecology
problem   k-6  
problem   ms8 Engineering
process   ms8 Engineering
producer   k-6  
Producer  An organism that uses an outside source of energy to create energy rich molecules. ms7 Ecology
prokaryote   H.S. 03. Cell
Prokaryote – A single celled organism that does not have a nucleus or membrane bound organelles.  Examples are Archia and bacteria. ms7 Classifcation
property   k-6  
Prophase   H.S. 05.  Mitosis/Meiosis
Prophase I   H.S. 05.  Mitosis/Meiosis
propulsion system   ms8 Engineering
propulsion system   ms8 Engineering
prosthetic device   ms8 Engineering
Protein   ms7 cells
protein   H.S. 02. Biochemistry
Protist – Kingdom of mostly one celled eukaryotic organisms that are different from plants animals and fungi. ms7 Classifcation
Protista   H.S. 10. Taxonomy
Proton A small, positively charged particle in the nucleus of an atom. P ms8 Particle Structures and Interactions
prototype   ms8 Engineering
pulley   k-6  
pulse   ms7 Human body
pupa   k-6  
pure   H.S. 07.Genetics
Pure substances (compounds and elements) A substance made of only one kind of matter and having definite properties. P ms8 Mixtures vs. Pure Substances
purine   H.S. 08. DNA, Replication, Protein Synthesis
pyrimidine   H.S. 08. DNA, Replication, Protein Synthesis
Quart   ms8 Properties of Matter
Radiation the transfer of energy by means of electromagnetic waves H ms8 Particle Motion Theory
reaction   k-6  
Recessive – A trait that reappears in the second generation after disappearing in the first generation when parents that have different traits are bred.  ms7 Heredity
recessive   H.S. 07.Genetics
recombinant DNA   H.S. 08. DNA, Replication, Protein Synthesis
red blood cell   ms7 Human body
red blood cell   H.S. 13. Human Physiology
redesign   ms8 Engineering
reflection   k-6  
reflex arc   H.S. 13. Human Physiology
refraction   k-6  
Repeated trials   ms8 Experimental Design
repel   k-6  
replication   H.S. 08. DNA, Replication, Protein Synthesis
reproduce   k-6  
reproductive isolation   H.S. 09. Evolution
Reptile   ms7 Classifcation
research   ms8 Engineering
respiration   k-6  
respiration   H.S. 13. Human Physiology
revolve   k-6  
Ribosome  A cell organelle composed of RNA and protein; and the site of protein synthesis. ms7 cells
ribosome   H.S. 03. Cell
rock cycle   k-6  
rotate   k-6  
salivary glands   ms7 Human body
savanna   H.S. 12. Ecology
scale   ms8 Engineering
scavenger   k-6  
Scientific Method   H.S. 01.Scientific Method
secretion   H.S. 13. Human Physiology
sedimentary   k-6  
seed   k-6  
sensory neuron   H.S. 13. Human Physiology
sex-linked   H.S. 07.Genetics
Sexual Reproduction   ms7 Heredity
sexual reproduction   H.S. 06. Reproduction
sheer force   ms8 Engineering
siding   ms8 Engineering
Significant digits all the digits in a measurement that are directly measured plus the last digit which is estimated  PPS ms8 Properties of Matter
skeleton   H.S. 13. Human Physiology
small intestine   ms7 Human body
smooth muscle   H.S. 13. Human Physiology
Solid  state of matter with a definite shape and a definite volume  P ms8 Particle Motion Theory
solution   k-6  
sort   k-6  
sound   k-6  
speciation   H.S. 09. Evolution
Species   ms7 Evolution
species   H.S. 09. Evolution
Species – a group of organisms that are closely related and can mate to produce fertile offspring. ms7 Classifcation
Sperm    ms7 Heredity
spinal cord   H.S. 13. Human Physiology
spindle   H.S. 05.  Mitosis/Meiosis
states of matter   ms8 Particle Motion Theory
stomach   ms7 Human body
striated muscle   H.S. 13. Human Physiology
structural support   ms8 Engineering
structural system (as in vehicles)   ms8 Engineering
Structure   ms7 cells
sublimation the change of state from a  solid to a gas  P ms8 Particle Motion Theory
succession   H.S. 12. Ecology
suspension system   ms8 Engineering
symbiosis   H.S. 12. Ecology
synapsis   H.S. 05.  Mitosis/Meiosis
taiga   H.S. 12. Ecology
taxonomy   H.S. 10. Taxonomy
Telophase   H.S. 05.  Mitosis/Meiosis
temperate rainforest   H.S. 12. Ecology
temperature   k-6  
Temperature the measure of the average kinetic energy of  the particles in a substance   P ms8 Properties of Matter
tension force   ms8 Engineering
tetrad   H.S. 05.  Mitosis/Meiosis
Thermal energy the total energy of a substance's particles due to their movement or vibration P ms8 Particle Motion Theory
Thermal equilibrium   ms8 Particle Motion Theory
thermal expansion   ms8 Particle Motion Theory
thermometer   k-6  
thrust (on vehicles)   ms8 Engineering
tissue   H.S. 03. Cell
torsion force   ms8 Engineering
trachea   H.S. 13. Human Physiology
trachea – air conducting tube that connects the larynx with the bronchi, is lined with mucous membranes and cilia, and contains strong cartilage rings ms7 Human body
trait   k-6  
Trait –  A genetically determined characteristic. ms7 Heredity
transcription   H.S. 08. DNA, Replication, Protein Synthesis
translation   H.S. 08. DNA, Replication, Protein Synthesis
transpiration   k-6  
trial   k-6  
tRNA   H.S. 08. DNA, Replication, Protein Synthesis
tropical rainforest   H.S. 12. Ecology
tundra   H.S. 12. Ecology
universal systems model   ms8 Engineering
urea   H.S. 13. Human Physiology
Vacuole  A vesicle that stores digestive enzymes and aids in digestion within the cell.  In plant cells large central vacuoles store water and other liquids. ms7 cells
vacuole   H.S. 03. Cell
valve   H.S. 13. Human Physiology
variable   k-6  
variable   H.S. 01.Scientific Method
variation   H.S. 09. Evolution
vein   H.S. 13. Human Physiology
vein – blood vessel that carries blood back to the heart and has one way valves that keep blood moving toward the heart ms7 Human body
ventricle   H.S. 13. Human Physiology
Vertebrate   ms7 Classifcation
vertebrate   H.S. 10. Taxonomy
vestigial structures   H.S. 09. Evolution
vibration   k-6  
villi – fingerlike projections covering the wall of the small intestine that increase the surface area for food absorption ms7 Human body
Volume the amount of space taken up by an object   P ms8 Properties of Matter
warm-blooded   k-6  
water cycle   k-6  
Water Cycle   A model that describes how water moves from Earth’s surface to the atmosphere and back to the surface again through evaporation, condensation, and precipitation. ms7 Ecology
weathering   k-6  
Weight the force of gravity on an object   P ms8 Properties of Matter
Yard   ms8 Properties of Matter
zygote   H.S. 05.  Mitosis/Meiosis
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