Back to Course Science Dexter Box Grade 7 0% Complete 0/0 Steps Chemical Rocket 1 Topic Presentation Sound Visualisation 1 Topic Presentation Simple Pendulum 1 Topic Presentation Electromagnetic Crane 1 Topic Presentation Science Dexter Box Grade 7 Simple Pendulum Presentation Lesson 3, Topic 1 In Progress ← Previous Presentation Lesson Progress 0% Complete Simple Pendulum by Infinite Engineers