Gravity is the force of attraction that causes objects to fall toward the center of the earth.
Air resistance, or air friction, can slow down the acceleration of a falling object. Terminal speed is the speed at which the downward pull of gravity is balanced by the equal and upward opposing force of air resistance for a falling object. Materials Procedures Adaptations Discussion Questions Extensions Evaluation Suggested Readings Links Vocabulary Academic Standards Credit Printable version of the lesson plan in rich text format. Provide the following materials for each group. Use our Teaching Tools to create custom worksheets, puzzles and quizzes about this topic.