Explains all the things that must be taken into consideration when engineers evaluate the soundness and viability of a particular design.

How your ears and your brain turn the sound waves out there in the world into the experience of music in your head, remains a mystery to many, but yet we all experience and even enjoy sounds and music. If you're interested in doing a...

Pipes are still used today to communicate on board a Canadian Navy ship. The different pipe sounds are explained here and you can listen to audio samples of them.

Extensive information about how waves behave in an elastic medium. Covers different types of waves, their characteristics and behavior, the anatomy of the ear, the speed of sound in different media, the parts of a wave, and wave phenomena.

Students investigate sound in their environment, particularly how sounds impact their lives. At the beginning of the unit, students use online simulations to investigate the properties of sound and learn about the components of a sound...

An experiment to create a device using cardboard tubes that will separate a mixture of sounds in a background into their different frequencies, from low to high depending on the tube length.

You can add a phonemic awareness activity to your phonics lessons each day and it will only add a few extra minutes to your lessons. You also don't need to buy expensive manipulatives for your students to use. There are lots of low-cost...

Get the facts about the Canvasback, a wild duck who only lives in North America. Besides finding a detailed physical description of one of the fastest flying ducks, you?ll also learn about some of this bird?s unique facts and...

General information is given on the loon. See a movie of a Common Loon and listen to the different sounds that the loons are best known for. Included are research questions and answers about impact of the environment on the loon in the...

In this lesson, students will learn about kites and gliders and how these models can help in understanding the concept of flight. Students will design and build their own balsa wood models and experiment with different control surfaces....

Learners will learn that scientists use seismic technology (sound waves) to map patterns of rock formations below the surface of the earth and that different types of rocks affect sound waves.

This site offers a very technical explanation of pitch. The author's emphasis is on tuning by intervals, explaining the different spaces of intervals by name. A very complex interactive diagram is included.

This lesson will discuss the differences between constructive and destructive wave interference. It is 1 of 2 in the series titled "Wave Interference."

Take a close-up look at the world of swamps and discover what lives and grows there through pictures, descriptions, and external links. Listen to the various sounds made in swamps in different locations.

Students will be introduced to the letter E. They will learn both the long and short vowel sound, as well as learn to recognize the capital and lowercase letter. They will also put Miss E in the middle of two consonants to sound out one...

There is plenty of information about dinosaurs here for students doing research. There are a fair number of ads but they are mainly related to dinosaurs. Besides fact pages for hundreds of dinosaurs, you will find information about...