This educators guide discusses the brain and contains activities on neuroscience. Activities include: (1) "The Space Life Sciences"; (2) "Space Neuroscience: A Special Area within the Space Life Sciences"; (3) "Space Life Sciences Research"; (4) "Neurolab: A Special Space Mission to Study the Nervous System"; (5) "The Nervous System"; (6) "Introduction to the Scientific Method"; (7) "What Cells Can I See in Muscle and Spinal Cord Tissue?"; (8) "Target Recognition and Synapse Formation During Development"; (9) "Motor Skills Development"; (10) "Visualizing How the Vestibular System Works"; (11) "Vestibular-Ocular Reflex"; (12) "Finding Your Way Around Without Visual or Sound Cues"; (13) "Pitch, Roll, and Yaw: The Three Axes of Rotation"; (14) "Building a Magic Carpet"; (15)"Building a 3-D Space Maze: Escher Staircase"; (16) "Measuring Blood Pressure in Space"; (17) "Changing Body Positions: How Does the Circulatory System Adjust?"; (18) "Baroreceptor Reflex Role Play"; (19) "The Geophysical Light/Dark Cycle"; (20) "How Quick Are Your Responses?"; (21) "Measuring Your Breathing Frequency at Rest"; (22) "How Long Can You Hold Your Breath?"; and (23) "Raising the Level of Carbon Dioxide in Your Blood". (MVL)