Chapter 2 Activity 1: This ‘developing ideas’ activity addresses the commonly held idea that when an object is given a push, force is transferred to it and continues to act on it after the push ends. You can also see the simulator setup used in this activity to examine the net force acting on an object both during and between pushes.
Chapter 2 Activity 6: This is the ‘applying ideas’ activity for Chapter 2. In it, students practice constructing and evaluating force-based explanations, and then examine and explain a new situation.
Chapter 4 Activity 3 Homework 1: Students work with a Small Particle Model simulator (click to see Setup 1, Setup 2, and Setup 3) outside of class to determine relationships between different variables describing a gas, and thereby develop the Ideal Gas Law.
Chapter 4 Activity 4: This is the ‘applying ideas’ activity for Chapter 4. In it, students use four "big ideas" to construct explanations for three phenomena involving gases. Note that unlike Chapter 2, the text provides only a bit of scaffolding (support) for students on how to write their explanations.