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  • Salt Crystals

    Book Chapter |

    The purpose of this assessment probe is to elicit students' ideas about crystalline solids.The probe is specifically designed to determine how students think atoms are arranged and move in a crystalline lattice.

  • Apple on the Ground

    Book Chapter |

    The purpose of this assessment probe is to elicit students' ideas about gravity. The probe is designed to reveal whether students recognize that gravitational force is a pull by the Earth, toward the Earth, regardless…

  • The Swinging Pendulum

    Book Chapter |

    The purpose of this assessment probe is to elicit students' ideas about pendulums. The probe is specifically designed to find out what variables students think affect the time it takes a pendulum to swing back and forth…

  • Antibiotics

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about infectious diseases. The probe is designed to reveal whether students recognize that antibiotics only work on bacterial infections, not viral…

  • Atoms and Cells

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about the smallest parts of living and nonliving things. The probe is designed to determine how students distinguish between cells and atoms in living…

  • Apple Tree

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about the plant structure where photosynthesis takes place. The probe is designed to reveal whether students recognize that food is made within the leaf…

  • Seeds in a Bag

    Book Chapter |

    The purpose of the assessment probe, in this chapter, is to elicit children's ideas about the needs of seeds. The probe is designed to find out if students recognize that when seeds are planted in soil, they need to…

  • Birthday Candles

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about how light travels. The probe is designed to find out if students know that light travels outward from its source, regardless of distance, until it…

  • Thermometer

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about thermal expansion. It is designed to find out whether students attribute expansion of the space between molecules to the rise of the liquid in a…

  • Floating Balloon

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about the mass of a gas. It is designed to reveal whether students recognize that an uninflated balloon will increase in mass when inflated with a gas,…

  • Hot and Cold Balloons

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about conservation of matter. It is designed to reveal whether students recognize that the mass of a warm gas in a closed system is the same after it has…

  • Mirror on the Wall

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about reflection of light. It can be used to examine how students use ideas about light to explain how we see objects in a mirror. Elementary school…

  • Batteries, Bulbs, and Wire

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about complete circuits involving lightbulbs. It reveals whether students recognize the pathway of electricity in a complete circuit, including its path…

  • Apple on a Desk

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about forces. It is designed to find out whether students recognize that balanced forces act on a stationary object. It is most appropriate for middle…

  • Rolling Marbles

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about circular motion. It is designed to determine whether students recognize that an object will move in a straight line unless acted upon by an outside…

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