Independent and Dependent Variables
Almost every experiment question on the science test comes down to one skill: telling apart the thing the scientist changes from the thing the scientist measures. Get those two straight and questions about experiments suddenly feel easy. Miss them and even simple items get confusing. GED Science Complete Prep: 50 Full-Length GED Science Practice Tests […]
Correlation Is Not Causation
Here is one of the most tested ideas in all of science reasoning, and one of the easiest traps to fall into: just because two things happen together does not mean one causes the other. When two things rise and fall together, we say they are correlated. When one thing actually makes the other happen, […]
