Use the coarse-focus knob to raise the stage until part of the threads comes into focus. Keep raising the stage slowly until all three threads are out of focus again. Now switch to the high-power objective. The threads are at different depths of view. To see each thread’s color, adjust the fine-focus knob. Top thread color: Middle thread color: Bottom thread color:

Put each tile to the correct location. categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. 1) scientific theories 2) both 3) scientific hypothesis a). a tentative statement used to guide scientific investigations b). makes predictions about future events c). can be tested many independent researches d). based on observations of natural phenomena e) . a well-established highly reliable explanation