7th grade vocab words for scientific method unit

Scientific methods Step by step producing a scientific problem
Observation Bits of information you gather with your sences
Inference Conclusion about an observation
Hypothesis A statement that is a guess
Independent variable one thing that can be change
Dependent variable A factor or outcome measured in an experiment
Constant Are factors that can be used an a experiment
Control A stander used for comparison
alkali medel chemical elements found
halogens "salt-former"
alloy Pronunciation of alloy. Translations
Noble gases group of chemical elements with similar properties:
transitional metals group of chemical elements with similar properties
alkaline earth metals Pronunciation of alkaline-earth metal. Translations of alkaline-earth
neutrons a constituent (proton or neutron) of an atomic nucle
protons A stable, positively charged subatomic particle in the baryon family having a mass
elements cannot be separated into simpler substances by chemical
atom An atom is the defining structure of an element, which cannot be broken
malleable . Capable of being shaped or formed, as by hammering or pressure
density The quality or condition of being dense.
corrosive 1. Having the capability or tendency to cause corrosion
ductile Easily drawn into wire or hammered thin
luster Soft reflected light; sheen
conservation of mass A chemical reaction involves atoms in the reactants being rearranged to form the products.
Compound To combine so as to form a whole; mix.
Molecule A small particle; a tiny bit.
cells walls rigid structure that end losses supports and protect the cells
cell membrane protective outer covering of all cells that regulates
cytoplasm connately moving gelatin like mixture inside the cell
ribosomes small structure on which cells makes their own protein
organelles structure in the cytoplasm of a eukaryotic
nucleus organelles that controls all the activities of a cells
chloroplasts green chlorophyll containing plants-cells organellen
Mitochondria cells organ where food is broken down
Golgi Bodies
Opaque not able to be seen through; not transparent.
Translucent allowing light, but not detailed images, to pass through; semitransparent.
Transparent allowing light to pass through so that objects behind can be distinctly seen.
Reflect throw back (heat, light, or sound) without absorbing it.
Absorb take in or soak up (energy, or a liquid or other substance) by chemical or physical action, typically gradually.
Transit the carrying of people, goods, or materials from one place to another.
Atmosphere the envelope of gases surrounding the earth or another planet
Troposphere the lowest region of the atmosphere, extending from the earth's surface which is the lower boundary of the stratosphere
Stratosphere the very highest levels of a profession or other sphere, or of prices or other quantities.
Mesosphere the region of the earth's atmosphere above the stratosphere and below the thermosphere
Ionosphere the layer of the earth's atmosphere that contains a high concentration of ions and free electrons and is able to reflect radio waves
Thermosphere he region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium
Exosphere the outermost region of a planet's atmosphere.