Fill in the blanks to correctly describe each separation process. Centrifuges can work on mixtures that are only. This kind of mixture can have properties that vary throughout a single sample. When a centrifuge spins, substances with move toward the outside of the tube, and then the remaining liquid can be decanted. If your mixture is , you might be able to use evaporation or distillation.

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?

In e. c. tolman's experiment, some rats were trained to run through mazes for standard food goals, while other rats were allowed to explore the mazes for 10 days without food goals or other rewards. later, when food rewards were placed in a box at the far end of the maze, the previously unrewarded rats reached the food box as quickly as the rewarded rats after only one or two trials. this experiment demonstrated that the rats had the ability to form of their surroundings.

Which three sentences in the story indicate that that the passage is an ex nihilo type of creation story?