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  • Chicken Eggs

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about food, transformation of matter, growth and development, conservation of mass, and systems. The concepts underlying this probe are complex. It is…

  • Chicken Eggs

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about food, transformation of matter, growth and development, conservation of mass, and systems. The concepts underlying this probe are complex. It is…

  • Nature of Science

    Position Statement |

  • Model of Air Inside a Jar

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the particle model of matter. The probe is designed to find out if students recognize that air is made up of particles that are widely spaced with…

  • How do propellants generate thrust?

    Lesson Plan |

  • What’s in the Bubbles?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about particles during a phase change. The probe is designed to find out if students recognize that the bubbles formed when water boils are the result of…

  • What Happens When You Bring a Balloon Near Wall

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about electrical interactions. The probe is designed to find out how students visually represent electrical interactions.

  • Ice-Cold Lemonade

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about transfer of energy. The probe is designed to determine whether students recognize that heat flows from warmer objects or areas to cooler ones.

  • The Teaching of the Science of Climate Change

    Position Statement |

  • Ecosystem Cycles

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the transfer of matter and energy in ecosystems. The probe is designed to reveal whether students recognize that only matter is cycled through an…

  • Camping Trip

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the effect of solar radiation on Earth’s temperature. The probe is designed to find out whether students realize the Earth continues to cool after…

  • Where Does Oil Come From?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about an important fossil fuel used by humans. The probe is designed to reveal how students trace oil back to its original source of material.

  • How does the JWST’s sunshield help maintain the operating temperature of the infrared instruments?

    Lesson Plan |

  • NSTA Reveals 2025 List of the Best STEM Books for K-12 Students

    Press Release |

  • Why Is Water Sphere-Shaped in Space?

    Lesson Plan |

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