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  • Water, Water Everywhere!

    Book Chapter | May 2019

    This lesson introduces students to the module challenge—the Rainwater Roundup Challenge. Through a slideshow and water activity, students learn about water as a scarce natural resource. As a foundation for understanding…

  • Water, Water, Everywhere

    Book Chapter | March 2017

    In this lesson, students help a comic book publisher understand the path of a drop of water traveling through the water cycle. Key words and concepts covered are water cycle, erosion, gravity, heating, and cooling.…

  • Water

    Book Chapter | February 2010

    The same water that has existed on Earth for millions of years travels through a series of steps in a cycle from mountains to the sea, flows in and out of the cells in your body, and comprises 95% of the mass of a…

  • Water

    Book Chapter | March 2012

    Where does water go when it flows down a river? Can water move land? What is the most effective way to use water to grow plants? These are just a few of the questions that students can explore with the lessons in this…

  • Water and Sanitation

    Journal Article | November 2020

  • The Water Cycle

    Book Chapter | March 2011

    Water is such an integral part of human existence that it makes up nearly three-quarters of Earth’s surface and has a profound effect on all life on Earth. Water vapor in the atmosphere accounts for just one-thousandth…

  • A Pile of Water

    Book Chapter | September 2011

    A substance’s molecular structure is responsible for its properties and governs how it interacts with other things on Earth. This Activity introduces and explores one specific property of liquid water. This sample…

  • The Wonder of Water

    Book Chapter | April 2012

    Water is an extraordinary substance that we often take for granted. Not only is it what makes our planet uniquely habitable, water is the only substance on Earth that naturally occurs in three different forms. In this…

  • Freezing Water

    Book Chapter | November 2011

    In this activity, students will see if the volume of an ice and water mixture goes up or down when the ice melts.

  • Magnets in Water

    Book Chapter | April 2009

    The purpose of this assessment probe is to elicit students' ideas about magnetism. The probe is specifically designed to determine whether students believe air is necessary for magnets to work.

  • Fury in the Water

    Book Chapter | May 2016

    The Sun is the ultimate power source for many of the processes on Earth, and water serves as a battery, storing and releasing the Sun’s power. These ideas are important for students to understand, because they form the…

  • Land or Water?

    Book Chapter | March 2016

    The purpose of this assessment probe is to elicit students’ ideas about the surface of Earth. It is designed to find out if students recognize that most of Earth’s surface is covered by water and helps students learn…

  • Water Play

    Book Chapter | April 2016

    As children explore the properties of water, they build a foundational knowledge of a material that is important in all the areas of science. This chapter focuses on activities of water play that is so common in early…

  • Water Works

    Book Chapter | April 2016

    In this chapter, the objective of the activity “How Can We Move Water?” is to explore the idea of work as expending energy to move water, to raise the question of what force(s) move water, and to gain experience using…

  • Movement of Water

    Book Chapter | May 2019

    The guiding question of this investigation is, Why can we see the roots of trees that grow near rivers or streams? Roots of trees are usually underground. In this lesson, the goal is to figure out why trees that grow…

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