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  • Two-Dimensional Motion

    Book Chapter |

    Two-dimensional (2D) motion means motion that takes place in two different directions (or coordinates) at the same time. The simplest motion would be an object moving linearly in one dimension. An example of linear…

  • Pushes and Pulls

    Book Chapter |

    Students have early childhood experiences with basic force concepts well before they encounter the word force in the science classroom. For example, it doesn’t take long for a child to figure out that pushing or pulling…

  • Lab 12. Explanations for Animal Behavior: Why Do Great White Sharks Travel Over Long Distances?

    Book Chapter |

    The purpose of this lab is to introduce students to many of the theories and concepts used by biologists to study and explain the behavior of animals. This lab also gives students an opportunity to design and…

  • Introducing the <i>NGSS</i>

    Book Chapter |

    The activities in this chapter provide an introduction to the NGSS. Activity 1 allows educators to explore the progressions of NGSS to begin understanding the structure of NGSS. Activities 2, 3, and 4…

  • A Can of Bull? Do Energy Drinks Really Provide a Source of Energy?

    Book Chapter |

    The case in this chapter teaches students about large biomolecules, nutrition, and product analysis. Students conduct a biochemical analysis of several popular energy drinks on the market and determine whether these…

  • Rubber vs. Glass: I Wonder Why sample

    Book Chapter |

    In this sample from Rubber vs. Glass: I Wonder Why you will explore the properties of rubber vs. glass and will discover that different objects have special and useful properties.

  • Light and Color: I Wonder Why sample

    Book Chapter |

    This sample from Light and Color: I Wonder Why unfolds observations about light, interaction with the properties of light, and the effect of light on objects. By reading this sample, you’ll discover what we mean when…

  • Sounds Are High, Sounds Are Low: I Wonder Why (Book Sample)

    Book Chapter |

    This sample from Sounds Are High, Sounds Are Low: I Wonder Why presents the nature of waves and sound with humorous proof in poetry of just how fun it is to observe with your ears. It’s ideal for beginning readers and…

  • Michael's Racing Machine: I Wonder Why sample

    Book Chapter |

    This sample from Michael’s Racing Machine: I Wonder Why illustrates the use of simple machines to accomplish work. It provides an easy-to-understand lesson in how simple machines are all around us, making work more…

  • Dark as a Shadow: I Wonder Why sample

    Book Chapter |

    This sample from Dark as a Shadow: I Wonder Why is written in lively rhymes, making it fun to learn the science behind why shadows change length through the day and disappear in the dark. Kids will learn to twist and…

  • Next Time You See The Moon sample

    Book Chapter |

    This sample chapter from Next Time You See The Moon focuses on the Moon's changing shapes and the many phases of the Moon. If you keep track of the Moon phases for a while, you will discover that it takes about…

  • STEM Education in the Middle School Classroom

    Book Chapter |

    In this chapter, find out how STEM lessons were first incorporated into a sixth-grade classroom in the Lebanon Special School District, a small community in Middle Tennessee. These students never gave much thought to…

  • Electricity

    Book Chapter |

    Have you ever rubbed a balloon on your clothes or your hair? What happened? Perhaps you noticed that the balloon somehow made your hair stand up. Maybe you could then stick the balloon to a wall or a ceiling. This…

  • Matter and Energy in Organisms and Ecosystems

    Book Chapter |

    The big idea for an area of study that challenges students year after year but yet is essential to life processes is the relationship between matter and energy—how we get and use energy for life. If we put a phrase to…

  • Next Time You See a Maple Seed sample

    Book Chapter |

    The Next Time You See books are not meant to present facts to be memorized. They are written to inspire a sense of wonder about nature and foster a desire to learn more about the natural world. In this free…

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