Unit 7: Ideas About Science (Biology B OCR GCSE)

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Scientific Investigations

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20 Terms

1

Scientific Investigations

Careful data collection and analysis.

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2

Stages

Hypothesis, predictions, experiments, conclusions.

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3

Hypothesis

Possible explanation for an observation.

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4

Prediction

Testable statement based on the hypothesis.

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5

Variables

Independent, Dependent, Control.

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6

Fair Test

Control variables must be kept constant.

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7

Data Collection

Planning what data needs to be collected.

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8

Sample Size

Large enough for valid conclusions, small enough to be manageable.

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9

Risk Assessment

Identifying and reducing hazards and risks.

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10

Processing Data

Collecting, presenting, and analyzing data.

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11

Errors

Random, Systematic, Anomalous.

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12

Presenting Data

Tables, Bar Charts, Graphs.

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13

Statistics

Range, Mean, Experiment Improvements.

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14

Drawing Conclusions

Data analysis, Correlation and Causation.

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15

Modification of Scientific Theories

New evidence, Technological advances.

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16

Peer Review

Scientific community checks new findings.

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17

Models and Limitations

Representational, Descriptive, Mathematical.

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18

Benefits and Risks

Improving quality of life, considering ethical implications.

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19

Communicating Science

Scientists must communicate their work effectively.

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20

Mnemonics

Using acronyms or phrases to remember concepts.

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