In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water. This lab asks learners to record measurements and make calculations related to volume, diameter, area, and height. Learners also convert meters into nanometers. Includes teacher and student worksheets but lacks in depth procedure information. The author suggests educators search the web for more complete lab instructions.

In this problem-based learning activity, students learn about global precipitation patterns. They assume the role of climatologists and teach a newspaper reporter about the scientific method, explore how rainfall patterns impact society using TRMM (Tropical Rainfall Measuring Mission) satellite data, and brainstorm needed weather instruments to be built in the future. The resource includes teacher notes, student worksheet, glossary and an appendix introducing problem-based learning. This resource is the third of the 3-part learning module, Investigating the Climate System:Precipitation.

In this lesson about cosmic rays, students will describe why cosmic rays are dangerous to astronauts. Includes information about student preconceptions. This is activity 3 of 4 from "The Cosmic Ray Telescope for the Effects of Radiation (CRaTER)."

Students learn about geotechnical engineers and their use of physical properties, such as soil density, to determine the ability of various soils to offer support to foundations. In an associated activity, students determine the bulk densities of soil samples, and assess their suitability to support foundations.

Students determine the mass and volume of soil samples and calculate the density of the soils. They use this information to determine the suitability of the soil to support a building foundation.

This article discusses the physical and behavioral adaptations that allow birds to survive in cold climates such as the polar regions.

This video segment adapted from FETCH! shows contestants experimenting with different materials to see which is the best insulator and thus best able to keep the lemonade at their stand cool for customers.

This lesson has students create a hands-on model that accurately explains seasonal changes on Earth and develop knowledge of the Sun-Earth system.

While learning about volcanoes, magma and lava flows, students learn about the properties of liquid movement, coming to understand viscosity and other factors that increase and decrease liquid flow. They also learn about lava composition and its risk to human settlements.

Students practice their multiplication skills using robots with wheels built from LEGO® MINDSTORMS® NXT kits. They brainstorm distance travelled by the robots without physically measuring distance and then apply their math skills to correctly calculate the distance and compare their guesses with physical measurements. Through this activity, students estimate parameters other than by physically measuring them, practice multiplication, develop measuring skills, and use their creativity to come up with successful solutions.

Students measure the permeability of different types of soils, compare results and realize the importance of size, voids and density in permeability response.

This illustrated essay from A Science Odyssey Web site explains the science behind radio waves, including the role of electrons and electromagnetic fields.

A lesson plan for 4th grade science. Kids create a version of the marble roll project to simulate a manufacturing process.

Do you have coffee filters, masking tape, and some bendy straws handy? Grab those and a few more supplies from your kitchen and you're ready to start thinking like an engineer.

In this fast-paced NASA Brain BitesŒ_íěÖ video, an astronaut demonstrates the impact of microgravity on the use of tools in space.

Students learn about the underlying engineering principals in the inner workings of a simple household object -- the faucet. Students use the basic concepts of simple machines, force and fluid flow to describe the path of water through a simple faucet. Lastly, they translate this knowledge into thinking about how different designs of faucets also use these same concepts.

Students investigate different forms of hybrid engines as well as briefly conclude a look at the different forms of potential energy, which concludes the Research and Revise step of the legacy cycle. Students are introduced to basic circuit schematics and apply their understanding of the difference between series and parallel circuits to current research on hybrid cars.

In this problem-based learning activity, students learn how the intensity and distribution of rainfall and the structure of clouds are critical information for flight navigators. Students assume the role of climatologists and assist a newspaper reporter in determining the veracity of a pilot's statement about weather conditions he encountered in flight using TRMM (Tropical Rainfall Measuring Mission) satellite data. The resource includes teacher notes, student worksheet, glossary and an appendix introducing problem-based learning. This resource is the second of the 3-part learning module, Investigating the Climate System:Precipitation.

In this problem-based learning activity, students learn about weather forecasting and the role of the TRMM (Tropical Rainfall Measuring Mission) satellite in data collection. Assuming the role of climatologists, students assist a reporter in determining the accuracy of weather predictions published in The Old Farmer's Almanac. The lesson requires a street map of the local community, acetate sheets to cover the map, materials needed to build a homemade rain gauge, and sample pages of the almanac. Teacher notes, student worksheet, glossary and an appendix introducing problem-based learning are included. This resource is the first of the 3-part learning module, Investigating the Climate System: Precipitation.

This Unit for the 4th Grade Kit, Waves and Energy, weaves together the various FOSS investigations in the context of an authentic and engaging storyline. Through an imaginary correspondence with a 4th grader who lives in the village of Ghaghara, India, students use a series of investigations to build their skills and content knowledge in order to solve larger problems being faced by their friend, Parvathi. Students engage in project-based learning while using science and engineering practices to help solve everyday problems in the context of Parvathi’s life. Students also use online research and evidence from investigations to construct claims based on evidence which inform and drive their practice of engineering.