In this activity, students use wood, wax paper and oil to investigate the importance of lubrication between materials and to understand the concept of friction. Using wax paper and oil placed between pieces of wood, the function of lubricants between materials is illustrated. Students extend their understanding of friction to bones and joints in the skeletal system and become aware of what engineers can do to help reduce friction in the human body as well as in machines.
Subject:
Mathematics and Statistics, Science and Technology
Students will design and build a mechanical arm that lifts and moves an empty 12-ounce soda can using hydraulics for power. Small design teams (1-2 students) will design and build a single axis for use in the completed mechanical arm. One team will design and build the grasping hand, one team the lifting arm, and the last team the rotation base. The three design groups must work to communicate effectively through written and verbal communication and sketches.
Subject:
Mathematics and Statistics, Science and Technology
This lesson covers the topic of human bones and joints. Students learn about the skeleton, the number of and types of bones in the body, and how outer space affects astronauts' bones. Students also learn how to take care of their bones here on Earth to prevent osteoporosis or weakening of the bones.
Subject:
Mathematics and Statistics, Science and Technology
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