Science definitions and equipment
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39 Terms
Science
the investigation and exploration of natural events and of the new information that results from those investigation.
Observation
the act of using one or more of your senses to gather information and take note of what occurs.
Inference
a logical explanation of an observation that is drawn from prior knowledge or experience.
Hypothesis
a possible explanation for an observation that can be tested by scientific investigations.
Prediction
a statement of what will happen next in a sequence of events.
Technology
the practical use of scientific knowledge, especially for industrial or commercial use.
Scientific theory
an explanation of observations or events that is based on knowledge gained from many observations and investigation.
Scientific law
a rule that describes a pattern in nature.
Critical thinking
comparing what you already know about something to new information and deciding whether or not you agree with the new information.
Description
a spoken or written summary of an observation.
Explanation
an interpretation of observations.
International System of Units (SI)
the internationally accepted system of measurement.
Significant digits
the number of digits in a measurement that are known with a certain degree of reliability.
Variable
any factor that can have more than one value.
Independent variable
the factor that is changed by the investigator to observe how it affects the dependent variable.
Dependent variable
the factor a scientist observes or measures during an experiment.
Beaker
used to hold and measure liquids[cite: 1]
Bunsen burner
source of heat[cite: 1]
Coverslip
covers material on a glass slide[cite: 1]
Dissecting pins
holds things in place during a dissection[cite: 1]
Dissecting scissors
special scissors used during dissections to cut[cite: 1]
Dissecting tray
a tray used to hold specimens during dissection[cite: 1]
Medicine dropper
measures out drops of liquid[cite: 1]
Forceps
grasps small objects[cite: 1]
Funnel
something used to help you pour liquids into small openings[cite: 1]
Graduated cylinder
measures liquids[cite: 1]
Hand lens
used to magnify small objects[cite: 1]
Microscope
lets you see microscopic things[cite: 1]
Glass slide
provides a mounting surface for microscopes[cite: 1]
Petri dish
shallow dish used for bacterial cultures[cite: 1]
Pipette
draws fluid by suction[cite: 1]
Probe
pointed object used to examine specimens[cite: 1]
Metric ruler
measures lengths[cite: 1]
Safety goggles
protects your eyes from harmful substances[cite: 1]
Scalpel
sharp tool used to cut things open[cite: 1]
Test tube
holds liquid[cite: 1]
Test tube rack
used to hold test tubes[cite: 1]
Thermometer
something used to measure temperature[cite: 1]
Triple-beam balance
measures mass[cite: 1]