This short video (~2 minutes) explains how a raindrop falls through the atmosphere and why a more accurate look at raindrops can improve estimates of global precipitation. This information is important to scientists working on the Global... (View More) Precipitation Measurement (GPM) mission - understanding the micro world of raindrops provides insight to scientists about the macro world of storms. (View Less)

Intended for use prior to viewing the Science on a Sphere film "Water Falls," this lesson introduces students to Earth's water cycle and the importance of freshwater resources.

Intended for use after viewing the Science on a Sphere film "Water Falls," this lesson deepens student's understanding of global precipitation measurement. Students will explore NASA satellite data gathered during Hurricane Sandy to learn how that... (View More) data was essential in helping scientists forecast its path and precipitation amounts. All background information, student worksheets and images/photographs/data are included in these downloadable sections: Teacher’s Guide, Student Capture Sheet, Assessment and PowerPoint Presentation. (View Less)

This toolkit was designed to help presenters - particularly scientists and engineers - easily present to elementary and middle school audiences and feel confident that the information they are presenting is developmentally-appropriate. The site... (View More) includes PowerPoint presentations on Earth's water cycle, with talking points and suggestions. Best practices are also included for elementary and middle school presentations that provide helpful suggestions before, during, and after the presentation, as well as a list of additional resources. (View Less)

This is a hands-on lab activity about the properties and states of water. Learners will complete activities using different liquids to understand the three states of matter, explain how the high heat capacity and abundance of liquid water makes life... (View More) on Earth possible, and understand that water containing salts and minerals has different properties than fresh water. They will graph data to analyze and articulate results and conclusions. The lab is set up as three stations that small groups of students rotate through; it can also be done as demonstrations (e.g., for younger students). Background information, common preconceptions, a glossary and more is included. This activity is part of the Aquarius Hands-on Laboratory Activities. (View Less)

Students are introduced to classification through progressive activities. Initially, the teacher models the task by classifying buttons. Students then devise a classification scheme for paper clips. Subsequent activities use objects brought from... (View More) home or the playground by students. The objects are assigned to two categories: natural or human-made, then classified as solid, liquid, gas or a combination. Simple bar graphs are used throughout to compare classification data. (View Less)

This is a hands-on lab activity about the water cycle, specifically evaporation and condensation. Using materials such as clay, ice and a lamp, learners will observe the relationship between temperature and condensation and temperature and... (View More) evaporation. They will then draw a diagram or a concept map of the water cycle. Background information, common preconceptions, a glossary and more is included. This activity is part of the Aquarius Hands-on Laboratory Activities. (View Less)

This is a hands-on lab activity about evaporation. Learners will conduct experiments to observe the process of evaporation. They will then describe the process of evaporation, and the general water cycle, through discussion and pictures. Background... (View More) information, common preconceptions, a glossary and more is included. This activity is part of the Aquarius Hands-on Laboratory Activities. (View Less)

Students determine the moisture content of a sponge after squeezing the water out of the sponge, and allowing water to evaporate from the sponge. Students also measure the amount of water that has evaporated from the soil samples. This learning... (View More) resource is part of the Soils chapter of the GLOBE Teacher's Guide, and is supported by the GLOBE soils protocols. GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program. (View Less)

This activity will show students how to determine rate of evaporation and the atmospheric factors that can affect this rate. Laboratory equipment needed for this investigation includes: a digital balance or triple beam balance, metric ruler in... (View More) millimeter graduations, level, 2 metal pans, barograph (or barometer), hydrograph (or hygrometer), thermograph (or thermometer), anemometer, rain gauges and quart jar. Teacher background information, assessment suggestions, and a scoring rubric are included. This is Activity 1, in the learning module, Water: Here, There and Everywhere, part of the lesson series, The Potential Consequences of Climate Variability and Change. (View Less)