7th Grade Science Guide
7.1: Field Forces 3 Dimensions & Progressions
Unit 2
● Observe magnetic feld lines for attracting and repelling magnets. ● Use magnetic feld lines to predict if an object will be attracted to a magnet or repelled. ● Observe magnetic feld lines produced by ferromagnetic materials. (Extension.)
Activity: Gizmo Charge Launcher
Objective
Overview
Materials
● Understand that
● The Charge Launcher Gizmo introduces students to electrostatic forces and challenges them to solve problems. Students launch charged particles across a grid containing fxed particles. The path of the launched particle is shown. Students can create a wide variety of paths by manipulating the particles on the grid and the speed of the launched particle.
● Gizmo
electrically-charged particles can exert force at a distance.
● Determine that like charges repel and
opposite charges attract. ● Predict the path of a launched charged particle based on the position of one or more fxed charged particles. ● Match a given path by manipulating fxed charged particles on a grid. ● Compare electrical forces to magnetic forces. (Extension)
Activity: Are You One with the Force?
Objective
Overview
Materials
● I can collect and analyze data to identify factors that affect the strength of electric and magnetic forces.
● Students observe the
● Lesson Plan ● Balloons ● Sinks or pitchers of water and containers to catch the water in
effect static electricity can have on water and bubbles and are challenged to create a
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