sientific metods Flashcards
Hypothesis
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Controlled experiment
or observation designed to minimize the effects of variables other than the independent variable. This increases the reliability of the results, often through a comparison between control measurements and the other measurements.
Variable
not consistent or having a fixed pattern; liable to change
Control group
in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.
Experimental group
An experimental group (sometimes called a treatment group) is a group that receives a treatment in an experiment. The “group” is made up of test subjects (people, animals, plants, cells etc.) and the “treatment” is the variable you are studying.
Step 1 of scientific method
ask a question
Step 2 of scientific method
make a hypothesis
Step 3 of scientific method
conduct an experiment
Step 4 of scientific method
collect data
Step 5 of scientific method
analyze information
Step 6 of scientific method
report results
Meter
the fundamental unit of length in the metric system, equal to 100 centimeters or approximately 39.37 inches.
Liter
a metric unit of capacity, formerly defined as the volume of 1 kilogram of water under standard conditions, now equal to 1,000 cubic centimeters
Gram
a metric unit of mass equal to one thousandth of a kilogram.
Volume
the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great
Mass
Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied
Density
the degree of compactness of a substance.
Area
Area is the quantity that expresses the extent of a two-dimensional figure or shape, or planar lamina, in the plane. Surface area is its analog on the two-dimensional surface of a three-dimensional object
Celsius
The Celsius scale, previously known as the centigrade scale, is a temperature scale used by the International System of Units. As an SI derived unit, it is used by all countries except the United States and Liberia.