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  • Sound Waves

    Book Chapter |

    In this inquiry activity, students will discover the relationship between length and pitch (frequency), tension and pitch, and mass per unit length and pitch without being instructed first. Many students confuse pitch…

  • Refraction of Sound

    Book Chapter |

    This lab introduces students to refraction using something they can experience. They really do not understand what is going on when a pencil is put into water and appears to bend. It is difficult to see rays of light…

  • Balloons and Ray Diagrams

    Book Chapter |

    This inquiry activity will be students’ first exposure to ray diagrams. They will be using the refraction of sound to simulate the refraction of light to introduce them to this concept. They will be creating a simulated…

  • Lenses and Ray Diagrams

    Book Chapter |

    This is the first time that students will draw technical ray diagrams (in previous experiments, they simply sketched the rays). They need a little instruction in drawing ray diagrams before they can do it, so the…

  • Curved Mirrors

    Book Chapter |

    This inquiry activity will be used before discussing curved mirrors in class. Students will discover how curved mirrors act and how the size and the orientation of the image are related to the distance from the mirror.…

  • Color Addition

    Book Chapter |

    This activity is inquiry in that students do not know how colors are combined. They likely think that the primary colors are red, yellow, and blue. In fact, there are two sets of primary colors: red, green, and blue for…

  • Diameter of the Sun

    Book Chapter |

    Although this lab is not an inquiry activity, it is another exercise to help students think about light rays and ray diagrams. The students think that the point of the lab is to calculate the diameter of the Sun. Really…

  • Intensity Versus Distance

    Book Chapter |

    This activity is Level 2 inquiry in that students will not know in advance that the relationship is inverse square. Although they may not get a perfect inverse square graph, it will be clear that it is not a perfect…

  • Ripple Tank

    Book Chapter |

    In this inquiry activity, students will discover some of the rules of reflection of water waves, how waves travel around boundaries, and how waves move floating objects before they have learned these concepts. If…

  • Acceleration of Gravity 1

    Book Chapter |

    This lab is a Level 2 inquiry activity that should be taught after students understand acceleration but before they learn the equations for calculating the acceleration of a body dropped from a certain height. After…

  • Oil Spot Photometer

    Book Chapter |

    Students will once again be reminded of the inverse square nature of light intensity. This is a concept that students often struggle with, especially when calculations are involved. The important idea of this lab is not…

  • Waves and Interference

    Book Chapter |

    This activity is inquiry in that students have not yet studied interference or interference patterns. Students without a computer at home should be instructed as where they can go to use a computer with speakers that…

  • Creating Static Electricity

    Book Chapter |

    In this inquiry activity, students will get some experience with static electricity before getting deep into electricity and magnetism. They will not know which combinations will generate static electricity and will…

  • Attraction and Repulsion

    Book Chapter |

    In this lab, students will experience the interaction of charged objects. Students should realize that the phrase “opposites attract” isn’t exactly correct. It is not just positively and negatively charged objects that…

  • Spark Length

    Book Chapter |

    This inquiry activity is performed before students understand the difference between current and voltage. Students also determine the procedure themselves and design the data chart and graph on their own. This makes it…

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