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Science

Key Concepts:

Terms in this set (30)

SCIENCE
The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested.
BIOLOGY
Scientific study of all forms of LIFE
HOMEOSTASIS
Regulating and maintaining constant internal conditions in an organism.(HOMIE DON'T BE CHANGING!)
PREDICTION
The act of making an educated guess as to what you believe will happen
HYPOTHESIS
Proposed explanation or answer to a scientific question.
EXPERIMENT
Process that tests a hypothesis by collecting information under controlled conditions.
CONSTANT
Condition that is controlled so that it does not change during an experiment.
INDEPENDENT VARIABLE
Condition or factor that is MANIPULATED by a scientist during an experiment.( DRY MIX)
DEPENDENT VARIABLE
Experimental data collected through observation and measurement. (DRY MIX)
THEORY
Proposed explanation for a wide variety of observations and experimental results.
OBSERVATION
using the senses to study the world; using tools to collect measurements; examining previous research results
DATA
observations and measurements recorded during an experiment
QUALITATIVE DATA
description in words or what is being observed; Example: color, odor or texture
QUANTITATIVE DATE
numeric measurements; Example: mass, volume, temperature, distance concentration, time or frequency
BEAKER
glass container used for stirring, mixing, pouring and heating chemicals
GRADUATED CYCLINDER
glass container used to measure volume
TEST TUBE RACK
used to hold test tubes upright
TEST TUBE
many uses: can be heated or used to mix/watching chemical reactions
PIPETTE
used to collect/add specific volumes of liquids
TRIPLE BEAM BALANCE
used to find the mass in grams of an object
ELECTRONIC BALANCE
used to find the mass in grams of an object
HOT PLATE
used to heat substance in glass or metal containers
PETRI DISH
used to collect specimen or hold agar for growing specimens
STIRRING ROD
used for mixing liquids
HAND LENS
used to produce a magnified image of an object
GOGGLES
used to protect the eyes from chemicals and other substances
APRON
used to protect the eyes from acids and fluids
COVER SLIP
holds the specimen in place on a microscope slide and protects the specimen from dust and accidental contact
STOPWATCH
handheld timepiece used to measure time
MICROSCOPE SLIDE
used to hold object for examination under a microscope
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