Science is a method of research by doing experiments. Scientists ask questions and make experiments to arrive at an approximately true hypothesis. The result is noted using to be used in further research. Unlike mathematics, science does not deal with facts that are 100% certain. Anything seen as unquestionable is not science. Anyone who wishes to challenge the conclusion of an experiment or scientific theory can replicate the circumstances of the experiment to do so.
A system of measurement primarily for length, volume, and weight/mass, using the "meter", "liter", and "gram" units combined with the following prefixes for quantity:
milli (0.001) - centi (0.01) - deci (0.1) - meter/liter/gram (1) - deca (10) - hecto (100) - kilo (1000)
Example: The average male weight is 176 centimeters (1.76 meters) and 53 kilograms (53,000 grams).
The system additionally includes Celsius for measuring temperature (noted as °C) and seconds (s) for measuring time. For scientici measurements, the following units are used: meters (m), liters (l), kilograms (kg); celsius and kelvin for temperature (°C, K).
|--------|--------|----- ...
0°C 100°C
water water
freezes boils
|--------|--------|----- ...
0K 273.15K 373.15K
|
theoretical point
atomic thermal motion stops