OAE Middle Grade Science questions with correct answers

Experimental Group - Answer A group of subjects upon which a hypothesis is tested Control Group - Answer A group which resembles the experimental group in all other ways, but on which the hypothesis is not tested (placebo) The Scientific Method - Answer State the problem, form a hypothesis, observe and experiment, interpret the data, and draw conclusions. Dependent variable (y-axis) - Answer The variable that is being measured and tested Independent variable (x-axis) - Answer The variable that is controlled or changed in an experiment Theory - Answer An accepted and well sustained explanation, which can be inferred confidence, but which can't be known for certain Model - Answer Helps scientists understand a concept. They are simplified explanations or simulations of reality, and are employed when empirical testing in the real world is difficult or impractical Law - Answer A statement shown to hold true through repeated observations within limited experimental parameters Accuracy - Answer How close a measurement comes to the "true