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20 Cards in this Set

  • Front
  • Back

a scientific guess to explain an occurrence

hypothesis

an explanation of natural phenomenon that is backed by scientific evidence

theory

anything that occupies space and has kass

matter

substances that cannot be broken down by ordinary means

elements

educated guess

hypothesis

an experiment that contains only one experimental variable

controlled experiment

the thing being testef

independent variable

the things in the experiment that MUST be the same

constants

the data that is observed and measured as a result of the independent variable

dependent variable

bond where opposites attract

ionic

when a substance has a slight charge

polar

the genetic code for all living things

dna

the action/ability of water to climb up the roots of a tree

capillary action

speed up chemical reactions

enzymes

means large

macro

particles found orbiting there nucleus of an atom

electrons

the sugar from which we get energy

glucose

strongest bonds where electrons are shared

covalent

a reasonable explanation for a series of effects

theory

positively charged particles

protons