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UnitEst TimeLearning ObjectivesEssential QuestionsMLS'sDOKMaterials & ResourcesProjects / Activities
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The Human Machine5 Weeks: 1 day per weekStudents investigate structures and functions of the human body. Students explore how our bones
and muscles are interconnected, how our eyes interact with light and impact our vision, and how our brain
responds to stimuli in our environment.		Mystery Science Unit 1 Lessons
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1 day Owl Ambush: Students generate observations and questions about the phenomenon and create an initial model to explain how the owl's body systems work together to catch prey.How do owl's body parts work as a system to sense and respond to its environment?4.LS1.A.12Mystery Science Anchor LessonStudents consider how the owl's body parts are a system, much like a machine such as a robot or a computer is also a system through observation of videos and group discussion.
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1 day Muscles and Skeleton: students discover the mechanism by which their muscles control their bones to move their bodies. Why do your biceps bulge?4.LS1.A.13Mystery Science Lesson 1In the activity, Robot Finger, students construct a model of a human finger and observe how pulling on a string (a model for tendons) causes it to bend at the joints.
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 1 dayLight, Eyes, and Vision: students discover the basics of how their eyes work, and figure out some of the causes of vision problems.What do people who are blind see?4.LS.1.A.1 4.LS1.D.1 4.PS4.A.12Mystery Science Lesson 2 In the activity, Eye Model, students develop a working model of a human eye. They use a magnifying lens as a model of the cornea to explore how the structure of this lens is related to the function of our eyes.
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 1 dayStructure and Function of Eyes: students delve further into the workings of the eye, exploring the function of their iris and pupil.How can some animals see in the dark?4.LS1.A.1 4.LS1.D.1 4.PS4.A.13Mystery Science Lesson 3In the activity, Pupil Card, students add a smaller pupil to the eye model that they created in the previous lesson. Then they observe how the changing size of the pupil controls how much light enters the eye.
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1 daysBrain, Nerves, and Information Processing: students explore the brain’s role in receiving information from the senses, processing that information, and controlling the muscles to enable movementHow does your brain control your body?4.LS1.A.1 4.LS1.D.14Mystery Science Lesson 4 In the activity, Think Fast!, students test their reflexes with two very quick experiments and one more involved activity. They learn about how we process information in our brains and then respond to that information in different ways.
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