Learn how to make waves of all different shapes by adding up sines or cosines. Make waves in space and time and measure their wavelengths and periods. See how changing the amplitudes of different harmonics changes the waves. Compare different mathematical expressions for your waves.

Using thermometers, cotton balls, string and water, students make simple psychrometers—a tool that measures humidity. They learn the difference between relative humidity (the ratio of water vapor content to water vapor carrying capacity) and dew point (the temperature at which dew forms). Teams collect data using their homemade psychrometers and then calculate relative humidity inside and outside, comparing their results to an off-the-shelf psychrometer (if available). A lab worksheet is provided for data collection and calculation. As a real-world connection, students learn that humidity and air density is taken into consideration by engineers for many design projects. To conclude, they answer and discuss analysis and application questions.

This lesson contains resources and activities to be used in the elementary music classroom to teach students about the instruments and their purpose in an orchestral setting.

A tutorial and demonstration lesson for identifying orchestral instruments using the free FlashQuiz  flashcard app for Windows

This resource contains links and lessons to give students a basic understanding of instruments of the orchestra, how to categorize them into families and where and why they are located in the orchestral setting

This online exhibit explores the history and development of the electric guitar. It includes information about the instrument designers and the musicians who influenced the creation of new guitars and innovations in their sound. Examples of about 40 different guitars are included with descriptions of each. There is also information on how different types of acoustic and electric guitars operate with the sounds of each available for listening. Finally, addition information, references, and links are included.

How can we tell what style of faulting was responsible for a particular earthquake? Especially in cases where there is limited instrumentation in a region, or where geologists have difficulty accessing the affected areas? What if the fault responsible does not break the surface? In this unit, we will show how modern space geodesy allows us to measure movements of Earth's surface over wide areas without the need to visit the region in question, and we will demonstrate the various Earth processes that we are able to measure and monitor in this way. Specifically, we will show how a technique known as Interferometric Synthetic Aperture Radar (InSAR) has revolutionized our ability to study earthquakes on the continents, by allowing us to measure where, over what spatial extent, how far, and in what direction, earthquakes have caused the ground to move.

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Online-ready: The exercise is electronic and could be done individually or in small online groups. Lecture can be done in an online format. A synchronous session is recommended.

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This article links to resources to help teachers create their own weather stations, participate in real data projects, and assess their students' knowledge of weather tools.

Founded by Bisher Abu Taleb, a vocalist and guitarist, and Ayham Abu Hammad, a music and video editor, i3zif (play) is an Arabic online music school that provides musical instrument instruction in Arabic and English. Through fee-based courses in several musical and instrumental practice areas, including the oud (stringed instrument), darbuka (goblet drum), guitar, piano, and Arabic vocals, i3zif seeks to streamline music-learning by bringing together numerous teachers and artists in one, online-accessible space.

Courses are arranged by music or instrument genre. The majority of reference songs or popular melodies used in the courses are Arabic-based, though some classes may incorporate popular Euro-American songs and melodies. The website can be viewed in English or Arabic, though more courses are listed on the Arabic version of the website.

This YouTube clip is a brief commercial featuring i3zif, an online Arabic music school. Founded by Bisher Abu Taleb, a vocalist and guitarist, and Ayham Abu Hammad, a music and video editor, i3zif (play) provides musical instrument instruction in Arabic and English. The commercial video outlines i3zif's services and provides insight into its areas of musical and instrumental expertise.

Instruments taught at i3zif include the oud (stringed instrument), darbuka (goblet drum), guitar, and piano. i3zif also offers lessons in Arabic vocals. The school's entire YouTube library can be found at the following link: https://www.youtube.com/user/i3zif

In this sample YouTube clip, i3zif CEO and co-founder Bisher Abu Taleb demonstrates the proper cadence and finger-placement for a popular Arabic song, "Ya ʿAshiqata al-Wardi," on a guitar. Founded by Bisher Abu Taleb, a vocalist and guitarist, and Ayham Abu Hammad, a music and video editor, i3zif (play) is an Arabic online music school that provides musical instrument instruction in Arabic and English. The video features three screens simultaneously, one of which follows the instructor's fingers on the guitar, while the other two show musical notes synchronized with the instructor's performance on the guitar, and a zoomed-out shot of the instructor.

The clip is a preview of how similar i3zif music classes function online. Instruments taught at i3zif include the oud (stringed instrument), darbuka (goblet drum), guitar, and piano. i3zif also offers lessons in Arabic vocals. The school's entire YouTube library can be found at the following link: https://www.youtube.com/user/i3zif

This YouTube clip provides a brief introduction to i3zif's courses. Founded by Bisher Abu Taleb, a vocalist and guitarist, and Ayham Abu Hammad, a music and video editor, i3zif (play) is an Arabic online music school that provides musical instrument instruction in Arabic and English. The clip features i3zif instructors playing and teaching musical instruments, as well as a brief voice-over describing some of i3zif's services. i3zif's fee-based courses consist of pre-recorded video and audio instruction by experts in a given musical or instrumental field.

The clip is a preview of how similar i3zif music classes function online. Instruments taught at i3zif include the oud (stringed instrument), darbuka (goblet drum), guitar, and piano. i3zif also offers lessons in Arabic vocals. The school's entire YouTube library can be found at the following link: https://www.youtube.com/user/i3zif