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Why the Metric System Matters
Video - TED Ed Matt Anticole
For the majority of recorded human history, units like the weight of a grain or the length of a hand weren’t exact and varied from place to place. Now, consistent measurements are such an integral part of our daily lives that it’s hard to appreciate what a major accomplishment for humanity they’ve been. Matt Anticole traces the wild history of the metric system.
Scientific Variables
Video- To help you understand the concept of variable in a scientific experiment.
Variables:
The Independent Variable:
This is a variable that you intentionally change.
The Dependent Variable:
This is the difference between the two parts of the experiment that happens when the independent variable is changed.