science 8 Flashcards

(24 cards)

1
Q

observation

A

a remark, statement, or comment based on something one has seen, heard, or noticed

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2
Q

hypothesis

A

a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

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3
Q

experiment

A

a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

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4
Q

data

A

facts and statistics collected together for reference or analysis.

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5
Q

conclusion

A

the end or finish of an event or process

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6
Q

theory

A

a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.

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7
Q

law

A

the system of rules which a particular country or community recognizes as regulating the actions of its members and which it may enforce by the imposition of penalties.

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8
Q

independent varible

A

a variable (often denoted by x ) whose variation does not depend on that of another.

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9
Q

dependent varible

A

a variable (often denoted by y ) whose value depends on that of another.

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10
Q

controlled variable

A

A controlled variable is a factor in a scientific experiment that is deliberately kept constant or unchanged to ensure a fair test and to determine the true effect of the independent variable on the dependent variable

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11
Q

control group

A

a control group in scientific experiments, which is a group that does not receive the experimental treatment and serves as a baseline for comparison

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12
Q

experimental group

A

An experimental group is the part of an experiment that receives the variable or treatment being tested

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13
Q

trial

A

a formal examination of evidence before a judge, and typically before a jury, in order to decide guilt in a case of criminal or civil proceedings.

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14
Q

bias

A

prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.

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15
Q

placebo

A

a harmless pill, medicine, or procedure prescribed more for the psychological benefit to the patient than for any physiological effect.

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16
Q

meter

A

the SI base unit of length (equivalent to approximately 39.37 inches), first introduced as a unit of length in the metric system.

17
Q

gram

A

a metric unit of mass equal to one thousandth of a kilogram.

18
Q

liter

A

a metric unit of capacity, formerly defined as the volume of one kilogram of water under standard conditions

19
Q

kilometer

A

a metric unit of length equal to 1,000 meters

20
Q

milimeter

A

a metric unit of length equal to one thousandth of a meter.

21
Q

centimeter

A

a metric unit of length, equal to one hundredth of a meter.

22
Q

kilometer

A

a metric unit of length equal to 1,000 meters

23
Q

millilimeter

A

a metric unit of length equal to one thousandth of a meter.

24
Q

celcius

A

of or denoting a scale of temperature on which water freezes at 0° and boils at 100° under standard conditions.