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Biology > U1 Defenitions > Flashcards

U1 Defenitions Flashcards

1
Q

An educated guess about the solution to the problem

A

Hypothesis

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2
Q

Observations and measurements recorded during an experiment

A

Data

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3
Q

A judgement based on the results of an experiment

A

Conclusion

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4
Q

A logical explanation for events that occur in nature

A

Theory

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5
Q

Used to show that the result of an experiment is really due to the condition being tested

A

Control

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6
Q

Factor that changes in an experiment

A

Variable

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7
Q

Organized process used to test a hypothesis

A

Experiment

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8
Q

Purposely chaged

A

Independent

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9
Q

Factors that scientists want to observe

A

Dependent

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10
Q

Not changed

A

Control

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11
Q

A hypothesis must be ________

A

Testable

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12
Q

Deals with numbers

A

Quantitative

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13
Q

Characteristics that can not be easily measured

A

Qualitative

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14
Q

What you gather is called __________

A

Data

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15
Q

Pure substance that consists entirely of one type of atom

A

Element

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16
Q

Two or more atoms joined together

A

Molecule

17
Q

A molecule that contains at least 2 different elements

A

Compound

Example - H2O

18
Q

The number of protons

A

Atomic number

19
Q

The number of protons and neutrons

A

Mass number

20
Q

Shows the chemical composition of a compound

A

Chemical formula

21
Q

A type of bond: Sharing of electrons between 2 atoms

A

Covalent

22
Q

A type of bond: Transfer of electrons from one atom to another

A

Ionic

23
Q

A type of bond: A weak bond between two molecules resulting from an attraction between a proton in one molecule and an electronegative atom in the other

A

Hydrogen

24
Q

The basic unit of matter

A

An atom

25
Q

Positive charge, bind with neutrons to form the atoms nucleus

A

Protons

26
Q

Negative charge, in constant motion

A

Electrons

Biology (7 decks)

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