Presentation is loading. Please wait.

Presentation is loading. Please wait.

THE NATURE OF SCIENCE.

Similar presentations


Presentation on theme: "THE NATURE OF SCIENCE."— Presentation transcript:

1 THE NATURE OF SCIENCE

2 The Method of Science

3 Science – process that uses observation and investigation to gain knowledge about events in nature

4 Scientific Method An organized set of investigation procedures
used by scientists

5 Hypothesis – educated guess or testable prediction Experiment – organized procedure for testing hypothesis Control – standard for comparison Constant – factor that doesn’t vary in experiment Independent variable – factor that is adjusted by the experimenter (x-axis) Dependent variable – factor whose value depends on the independent variable (y-axis)

6 Scientific Law vs. Scientific Theory
Rule of nature that sums up related observations to describe a pattern in nature Ex. Law of Gravity Explanation based on experiments – most logical explanation Ex. Black Hole Theory

7 STANDARDS OF MEASUREMENT

8 International System of Units (SI)
Standard system of measurement used worldwide SI Base Units Quantity Measured Unit Symbol Length meter m Mass gram g Time second s Electric current ampere A Temperature kelvin K Amt of Substance mole mol Intensity of light candela cd

9 – Distance between two points Volume
Common SI Prefixes Prefix Symbol Multiplying Factor kilo k 1,000 deci d 0.1 centi c 0.01 milli m 0.001 micro μ nano n Length – Distance between two points Volume – The amount of space occupied by an object Mass – Amount of matter in an object Density – Mass per unit volume of a material Time – Interval between two occurring events

10 GRAPHING

11 Graph A visual display of information or data.

12 Line Graph Show trends or how the data changes over time

13 Bar Graph Useful for comparing information collected by counting

14 Circle Graph (pie chart) Used to show how a fixed quantity is broken down into parts


Download ppt "THE NATURE OF SCIENCE."

Similar presentations


Ads by Google