In this video segment adapted from ZOOM, visit a water treatment plant and learn how water from a local reservoir is turned into drinking water.

This simulation from the National Center for Atmospheric Research portrays annual patterns in water vapor and precipitation across the globe, illustrating general circulation patterns as well as seasonal and regional variation.

Students are asked to explain the interactions between the ocean and the shore. ***Access to Teacher's Domain content now requires free login to PBS Learning Media.

Make waves with a dripping faucet, audio speaker, or laser! Add a second source or a pair of slits to create an interference pattern.

This course discusses theoretical concepts and analysis of wave problems in science and engineering. Examples are chosen from elasticity, acoustics, geophysics, hydrodynamics, blood flow, nondestructive evaluation, and other applications.

Watch a string vibrate in slow motion. Wiggle the end of the string and make waves, or adjust the frequency and amplitude of an oscillator. Adjust the damping and tension. The end can be fixed, loose, or open.

Watch a string vibrate in slow motion. Wiggle the end of the string and make waves, or adjust the frequency and amplitude of an oscillator. Adjust the damping and tension. The end can be fixed, loose, or open.

A selection of children's books is provided to help students learn about the greenhouse effect and ways humans impact the environment. The book list complements lessons and activities focused on the theme of the free, online magazine Beyond Weather and the Water Cycle. The magazine integrates science and literacy learning for students in grades K-5.

In this activity, students learn to interpret current weather maps. They will observe weather map loop animations on the internet, learn the concept of Zulu time (Universal Time Coordinated, UTC) and visualize the movement of fronts and air masses. They will then analyze a specific weather station model, generate a meteogram from their observations, and answer a set of questions about their observations.

Students learn how Newton's Law of Gravitation can be used to determine the mass of the Earth. By calculating mass and volume, they can then determine the Earth's density, and compare that result with the densities of other solar system bodies. Knowledge of Earth's density can also provide information about the planet's interior.

In this exercise, students investigate long-term weather variables such as temperature and humidity to determine their affect on the climate of a particular region. They will choose two cities, use an online resource to obtain geographic and climatic information for each, and use a spreadsheet program to produce graphs that compare data for the two cities.

In this video from WOSU Columbus, learn about wetlands, their different varieties, and why we should care about them.

This demonstration will show how increased temperatures will hasten the melting of ice in the environment, contributing to a rise in sea level and subsequent flooding of coastal areas. Materials required include 2 aquariums, plastic wrap, a clamp light with a 60 watt bulb, modeling clay, ice, pebbles and rocks, and a ruler. Teacher background information, student worksheets and a scoring rubric are included. This is Activity 3 of the learning module, Too Many Blankets, part of the lesson series, The Potential Consequences of Climate Variability and Change.

The activity describes Eratosthenes' experiments which determined that the Earth is spherical, rather than flat. Students reproduce Eratosthenes' methods using a slice of pizza to calculate the circumference of the entire pie.

This resource introduces the concept of wind chill, the formula used to measure it and relates it to the causes of hypothermia. A simple experiment using a pie pan, sand, fan and a thermometer demonstrates this concept. The resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications.

The purpose of this resource is to introduce students to the concept that sometimes there is no one "right" answer to a question or measurement. Students learn to be careful when searching for a right answer to questions such as 'What time is it?' by comparing multiple measurements of the time of day. Students gain an intuitive understanding of the characteristics of imperfect measurements. Using different clocks, students simultaneously record the displayed times. The resulting time measurements are converted from minutes and seconds to seconds. These measurements are plotted to illustrate the mathematical techniques of averages and deviations from an average.

This lesson would be used to follow up with the “What’s in the Water? Lab Activity.”

You are employees of competing Water Testing companies. You recently received a request from the municipality of Cavour to test their water for an unknown/suspected parasite that they suspect has been causing nausea and intestinal distress in their community.

Your mission after developing the Method for testing for the parasite found in the City of Cavour’s water is to submit your report for approval by the City of Cavour.

Your report and presentation will be used to determine whether Cavour accepts your bid for the contract.

This fun Web article is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they learn about Earth science. Our Earth Is Always Changing looks at the fast changes produced by volcanoes and earthquakes and the much slower results of continental drift and mountain formation. A Peek Inside Our Planet explains and compares the Earth's four layers. Earth's Layers Work Together explores the role that each layer plays in the greenhouse effect, which makes life on Earth possible. Humans Are Just a Tiny Part of Earth's Long History puts the past 4.5 billion years into perspective.

In this activity, students investigate the mass, pressure, and temperature of air. They will measure and record the mass and temperature of a bottle of air as they increase its pressure by pumping in more air, record their observations, and answer some questions about what they have seen.

In this demonstration, students experience the Doppler effect for sound. Students can compute the frequency change for motion along the line of sight (LOS) and determine the vector LOS component for motions not exactly on it. A buzzer, battery, bicycle wheel, string and a rubber ball and a timer are needed for the demonstration. The resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications.